Westworld's Vanishing Point details the Man In Black's tragic backstory and family life

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WARNING: Spoilers below, content is graphic 

Westworld's Vanishing Point Sunday on HBO, the ninth episode of the program's second season, focused on The Man in Black (Ed Harris), who walked into Westworld as wide-eyed William and emerged a homicidal predator.

'No one else sees it,' he said in a voice-over. 'This thing in me. Even I didn't see it at first. And then one day it was there. This stain I never noticed before. '

The scene was a luxe party where the older William, a business magnate and philanthropist on the outside world, stared at his beautiful wife Juliet (Sela Ward).

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Complicated: Westworld's Vanishing Point Sunday on HBO focused on The Man in Black (Ed Harris), who walked into Westworld as wide-eyed William and emerged a homicidal predator

It cut to the park in present times, where his adult daughter Emily (Katja Herbers) found him ailing at the foot of a tree and offered him liquids.

Emily told him he's punishing himself and that she ran from the pain also, and how she had once tossed a jewel box her mother gave her as a gift out of resentment of her alcoholism.

'I pushed her away and it was too late - but it's not too late for us,' Emily told William.

She then brought up 'the project uncle Logan used to talk about' - William's use of Delos to replicate the guests into hosts.

Pushed to the brink: The Man In Black held a gun to his own head amid a jaw-dropping turn of events 

Complicated: William's relationship with his daughter Emily was keynote to the episode 

'It's real isn't it? Your pursuit for immortality, for life - there's always an angle with you. You want it to be about control, don't you?' Emily said, adding that she wants in.

In a flashback to the luxe party, William and Emily talked about how to save Juliet from her drinking problem as they looked at her imbibing.

While in a deserted bar area at the bash, Dr. Robert Ford (Anthony Hopkins) confronted William, who asked, 'What's Oz doing without its wizard?'

William declared that the two had an agreement for William to lay off of the stories, and for Ford to lay off of William's Valley project.

Ford told William, 'Be careful what you wish for, and slides him a chip card profile, while warning him that it's not a flattering self-portrait.

'Enough games, Robert,' William said, feeling the room to help Juliet, who was wildly drunk as he ushered her out of the bash.

Ford looked on and said, 'No William: Perhaps one more final game.'

Back in Westworld, William admitted to 'monitoring guests' and 'storing all their data' to Emily, who was doubtful that there was enough information to pull it off.

'We saw inside them down to the core,' William told Emily, who pressed him on why Juliet commit suicide.

Luxe life: This shot showed the bash tossed for William, a generous philanthropist on the outside  

Waiting on a friend? William's party had a special guest in Dr. Robert Ford

Bleak: The episode foreshadowed one of its most powerful moments with this cut to an overflowing tub

In a flashback to William and Juliet arriving home after the party, the pair clashed, with Juliet asking William about his yearly pilgrimages to Westworld and what he did there.

A drunken, emotional Juliet told William how she initially misread him as an authentic person, as opposed to the rich men she'd grown up with.

'You f***ing phony! You're a f***ing virus - you came into this house, into my family and you consumed it from the inside out - first my brother, then my father, and now it's me,' Juliet told William - referencing James and Logan Delos (Peter Mullan and Ben Barnes, respectively) before Emily walked in the room.

Emily told Juliet they're going to have to take her back to a rehabilitation center. Juliet responded that she needed rest and said, 'Honey, your father doesn't love you, he doesn't love me either.'

William tucked Juliet into bed.

Speaking with Emily in Westword, William said of Juliet: 'What happened was nobody's fault - she was drunk, upset.'

The pair were then sitting in the kitchen of William's estate as Emily said the family was going to involuntary commit Juliet for two weeks.

'I don't want to do this ... but there is something wrong inside her - it's the right thing to do,' Emily said, when droplets of water began careening from the ceiling and down the chandelier.

Wiliam ran up the staircase to find the tub saturated and Juliet sitting in it - dead - having overdosed from a bottle of pills.

In the park, Emily said, 'I want the truth,' to which William stared and replied, 'F*** you.'

Wiliam then made clear he believed Emily was not his daughter, but rather Ford in disguise as a host replica of Emily, testing him as he has through other characters on his journey.

'This is sadistic Robert,' said Wiliam. 'I make my own decisions and I'm going to destroy this whole f***ing place.'

Revelation: Ford revealed to Maeve that she's his favorite of all of the hosts in the episode 

Dynamic duo: Elsie and Bernard's travels took an unexpected twist on Sunday's show

Shots fired: The Man in Black got hold of a futuristic automatic weapon on Sunday's show

Wiliam said the real Emily would be gone by now, and she responded, 'I'm not a host pretending to be a human - I'm your daughter, pretending to give a s**t about you!'

Emily said she was going to expose the project - and him - and have him incarcerated. Wiliam reminded Emily that it was her decision to have Juliet committed, leading to her suicide. Emily said that Juliet had left her the aforementioned profile card and told him, 'You are, in your very essence, a lie.'

Armed Delos rescuers emerged on the scene, and Wiliam told them that Emily's not his daughter.

The rescuers realized it was the head of the company they were talking to - as they checked his credentials with a scanning device on the back of his neck - and he grabbed a gun and killed them all.

Wiliam then shot his daughter Emily and dropped the gun, saying, 'F*** you Ford,' noting how he's never mentioned the detail of the profile card to anyone but him.

Wiliam pulled the profile out of his hand and realized he'd seemingly killed his daughter.

Later in the episode, William thought about his daughter and held a gun to his head while hearing Juliet's voice ask him about the truth.

He was seen in his estate, sitting at Juliet's bedside and saying how he shed his skin to reveal a darkness underneath.

Concern: William and Emily looked after Juliet after she drank too much 

Troubled: William's turbulent relationship with Juliet was chronicled in the episode 

Misdeeds: William's profile revealed all of his acts of violence at Westworld to his wife

Tragic: Juliet's dead body was seen in the bathtub with an empty pill bottle nearby

He said, 'No one else sees it. This thing in me. Even I didn't see it at first. And then one day it was there: this stain I never noticed before. Hanging to me like a darkness, invisible to everyone, but I could see nothing else, until finally I understood that the darkness wasn't some mark from something I'd done, some regrettable decision I'd made; I was shedding my skin.

William continued, 'The darkness was what was underneath. It was mine all along and I decided how much of it I let into the world. I tried to do right. I was faithful, generous, kind, at least in this world. 

'That has to count for something, right? I built a wall and tried to protect you and Emily. But you saw right through it, didn't you?' he said. 'You're the only one. And for that, I am truly sorry. Because everything you feel is true. I don't belong to you - or this world - I belong to another world; I always have.'

As William walked out of the room, Juliet's eyes flickered opened, indicating she'd heard and digested every world, then she grabbed the profile card and attached it to a Delos tablet. It revealed numerous acts of violence William had committed in Westworld both in present times and in his younger years.

Juliet looked in the mirror, opened the ballerina box and placed the profile inside.

'What is a person but a collection of choices?' William said, tossing the gun aside and digging into his arm with a blade.

Elsewhere, Bernard Lowe (Jeffrey Wright) watched on as Delos exec Charlotte Hale (Tessa Thompson) had a technician checking on hosts, with Clementine (Angela Sarafyan) as a guinea pig to recreate Maeve's power of an altered code that triggers, with a raise of the hand, the other hosts to violently murder one another.

'I'd warned you not to trust you Bernard, they'd rather the hosts be destroyed than freed,' Ford's voice told Bernard in his head.

Later, Bernard walked through encountered Maeve Millay (Thandie Newton), under observation with her neck ripped apart. Bernard heard Ford's voice and others as he walked through the bowels of the facility to meet up with Elsie.

Bernard said of the Cradle, 'What they're doing to James Delos, they're doing to everyone in the park.'

He told Elsie that all of the information about the guests is laid bare in code on a vast server in an area called the Forge; and that the hosts were headed there.

Brain freeze: Bernard was rattled by Dr. Ford's voice in his head

Pest: Ford continually appeared in Bernard's head throughout the episode

Bernard cautioned about the disastrous consequences of a host gaining that information.

In the park, Bernard and Elsie scoured dead bodies for ammunition when Ford's voice was heard again, warning him of Elsie's imminent betrayal.

'I'm not going to hurt her again,' Bernard told Ford, who argued that there's an origin of an entire species to consider. Bernard tossed his gun and yelled, 'Get out of my f***ing head.'

He then used a tablet wired into his arm to delete Ford from his system and told Elsie, 'I had to patch a glitch.'

Bernard handed Elsie a device that would help rescuers track her and rode away in the jeep leaving Elsie behind. A weeping Elsie responded, 'F*** you, Bernard.'

Ford later walked into the room with a mangled Maeve, and asked, 'Oh my dear girl - what have they done to you Maeve?'

The technician does not see or hear Ford as he's speaking to Maeve, revealing she's the favorite of all the hosts he's made.

'You stayed here in this world so save your child - so have I,' Ford said, adding that he was wrong in how he tried to aid her escape.

He told Maeve: 'Don't let them end your story,' as the tablet showed her core permissions have been unlocked.

Memory lane: Teddy revealed how he had remembered everything that had ever happened, from the very start

Upset: Dolores was inconsolable after Teddy had shot himself in the head 

Commanding: Clementine was coded with powers destructive toward her fellow hosts

In the storyline involving Dolores Abernathy (Evan Rachel Wood) and Teddy Flood (James Marsden), they were confronted by Ghost Nation, with a number of guests in tow, telling them to back away from the Valley Beyond and leading to a shootout which Teddy and Dolores survived.

'The only real world,' Dolores said, 'is the one that lies behind these borders.'

Later, the pair happened upon an abandoned wooden house, where Teddy told Dolores that she remained his cornerstone, no matter what, and that he remembers everything that's ever happened to him.

The scene cut to Teddy sitting under observation from Bernard in Westworld's earliest days, staring at Dolores standing naked in the corner, among the other hosts.

'You changed me - made me into a monster,' he said at the house. Dolores responded, 'I made it so you could survive.'

Teddy said: 'What's the use of surviving? I understand how how this will end, where you will lead us.'

Teddy told Dolores he can't protect her anymore - or himself - and fired a shot into his own head, marking his most dramatic death to date.

Dolores hovered over him and cried as the episode wound down.

Next week's season finale of Westworld airs on HBO Sunday at 9/8c.