Lilith sitting on an examination table with a beautiful smile on her face
Mary Mason and her husband Steve
Mary Mason being tormented and bullied by Gloria
Mary Mason in an interview with Dr. Daniel Duryea
Dr. Daniel Duryea talking to Mary Mason
Mary Mason being sent to an asylum cell by Natasha and the guard
Mary Mason's inaginary killer in handcuffs and being sent to an asylum cell by a doctor
Mary Mason being locked up in an asylum cell
Mary Mason with a terrified and frightened look on her own face
The guard glaring directly at Mary Mason with a feeling of disbelief
The imaginary killer with a vicious and evil smile on his own face
Gloria glaring directly at Mary Mason with a feeling of disbelief
The imaginary killer staring directly at Mary Mason
Mary Mason on the phone and trying very desperately to call for help
The imaginary killer hunting down Mary Mason and stalking her
Mary Mason hiding under a desk while being hunted down by the killer
Mary Mason's imaginary killer strangling Natasha with his own bare hands
A beautiful but frightened nurse being used for a biological experiment by Dr. Daniel Duryea
Dr. Daniel Duryea being confronted by Mary Mason's imaginary killer
The imaginary killer with a very confused look on his own face
Dr. Daniel Duryea's death
Mary Mason realizing with horror that she was the killer all along
Mary Mason killing Gloria with a nightstick
Mary Mason killing Natasha with a nightstick
Mary Mason being confronted by her abusive husband Steve
Mary Mason staring at herself in the mirror
The nurse with a terrified and frightened look on her own face
Mary Mason and her imaginary killer walking down the hallway
A man asks a woman named Mary Mason to marry him and she gladly accepts his proposal
In the real world, Mary Mason is a patient who watches a soap opera on television
A woman named Gloria taunts and berates Mary Mason for daydreaming all the time
Gloria says that Mary Mason is a homicidal psychopath like everyone else in this place
Mary Mason tells the guard that Gloria hit her, and he asks Clarissa who started the fight
Mary Mason is taken away in a straitjacket after Clarissa says that she started the fight
Lilith states that Mary Mason wants her old life back
Lilith states that there is no safety for us when everyone thinks we're crazy
Lilith declares that things are about to get a little nuts
We catch a very brief glimpse of a building called the Cuesta Verde Institute
A doctor named Daniel Duryea tells Mary Mason that unless she tells the truth, he can't help her
Mary tells Dr. Duryea that her husband was wonderful and kind, and they loved each other
Mary Mason tells Dr. Duryea that she and her husband were having a very late dinner
Mary Mason tells Dr. Duryea that she was too afraid to save her husband, so she ran away
Dr. Duryea tells Mary Mason that the police found no evidence to corroborate her own story
Mary Mason warns Dr. Duryea that the guy is going to kill more people unless he's stopped
Dr. Duryea tells Mary Mason that she's suppressed her memories, so he'll try alternate procedures
Dr. Duryea tells Mary Mason that he doesn't want to perform shock treatment on her
Mary Mason fears that Dr. Duryea could do experiments on her and turn her into a vegetable
The guard and the nurse make Mary Mason very comfortable in her new home
Mary Mason sees a guy in handcuffs and recognizes him as the man who killed her husband
Mary tells the guard about the guy who killed her husband, but he doesn't believe her
We catch another glimpse of the Cuesta Verde Institute as day turns into night
Mary Mason suddenly sees the guy who killed her husband from inside her cell
The guard tells Mary Mason that he's only here to have some fun with her
The guy barges into the cell and kills the guard while Mary Mason escapes
The killer smears some blood on his own face, then goes after Mary Mason
Mary Mason tells Gloria and Clarissa that the killer is after her, but they don't believe her
Gloria and Clarissa try to have fun with Mary Mason, but she doesn't want any part of it
The guy barges into the hallway and kills Clarissa and Gloria while Mary Mason escapes
The killer walks down the hallway looking for Mary Mason while she looks for a place to hide
Mary Mason sneaks into an office room and looks for someplace to hide and stay quiet
Frightened and alone, Mary Mason tries to call for help, but the killer barges into the room
The killer begins searching for Mary Mason the way a predator searches for its prey
The killer tries to figure out where Mary Mason could be hiding in the office room
The killer looks for Mary Mason and doesn't notice that she is hiding underneath the desk
The killer continues trying to figure out where Mary could be hiding while she stays quiet
The killer carefully sneaks right past Mary Mason, who is still hiding underneath the desk
The killer finally looks under the desk, only to find that Mary Mason has disappeared
While Mary Mason stays quiet, the killer reluctantly gives up his search and walks out the door
When the nurse hears a loud noise, she grabs a flashlight and goes to investigate
Mary Mason quietly leaves the office room while the nurse continues to investigate
Mary Mason quietly walks down the hallway while the nurse tries to find out what's going on
The guy kills the nurse by breaking her neck, then finally finds Mary Mason
The killer begins stalking Mary Mason, and she becomes very frightened and runs for her life
Dr. Duryea calls the guy by Mary Mason's name just when he is about to finish him off
Dr. Duryea again calls the guy by Mary Mason's name before he dies in peace
Mary Mason looks at herself in the mirror and finally realizes what she has truly done
It was Mary Mason who killed the guard, Clarissa, Gloria, the nurse and Dr. Duryea all along
Mary Mason screams out loud at the top of her lungs because of what she had done
We catch one final glimpse of the Cuesta Verde Institute at the crack of dawn
Mary Mason, in a nurse's uniform, walks down the hallway with her very best friend
The next time we happen to cross Mary Mason's path, we should be very nice to her
We say goodbye to Mary Mason as she opens the doors and walks right through them