Elm Camp II: The Return

Psycho II is a 2016 American psychological slasher horror film directed by Matt Reeves and written by David Fincher. It is the first sequel to Guillermo Del Toro's Elm Camp and second film in the Elm Camp series. It stars Thomas Brodie-Sangster, Zoë Kravitz, Karen Gillan, Colm Feore, John Boyega, Liam Aiken, Emma Stone, Ryan Potter, Isabelle Fuhrman, Bruno Ganz, Demi Moore, Jason Alexander and Emma Watson. The original music score was composed by Danny Elfman.

The film did well financially, grossing over $34 million, which in-part led to two further sequels. The film was received moderately well by critics, and has a 60% fresh rating at Rotten Tomatoes. Critics noted that the film worked hard to sustain the suspenseful atmosphere of the original. The film was followed by Elm Camp III: Last Visit and Elm Camp 4: A New Beginning.

The Return takes place 3 years after the first film. Charles Elm is released from the mental institution, seemingly free of his true identity of Mona, and returns to the Elm Camp to continue a normal life. However, it soon becomes apparent that her troubled past as Charles is going to continue to haunt her, and leave corpses along the way.

Plot
Charles Elm (Thomas Brodie-Sangster) is released from a mental institution after spending 3 years in confinement. Mary Cullen (Karen Gillan), sister of Edith Cullen, vehemently protests with a petition that she has been circulating with signatures of 743 people, including the relatives of Edith's friends and other individuals whom Charles killed prior to his incarceration, but her plea is dismissed. Charles is taken to his old home at the Elm Camp by Dr. Simon Onegin (Colm Feore), who assures him everything will be fine.

Charles is introduced to the camp's new manager, Adrian White (Jason Alexander). The following day, Charles reports to a prearranged job as a dishwasher and busboy at a nearby diner, run by a kindly old lady named Nora Snart (Demi Moore). One of his co-workers there is Susan Smith (Zoë Kravitz), a young waitress. After work, sUSAN claims she has been thrown out of her boyfriend's place and needs a place to stay. Charles offers to let her stay at the Elm Camp, then extends the offer to his home when he discovers that White has turned what had been a shabby but respectable establishment before Charles was committed into a sleazy sex and drug free camp for teenagers.

Charles' adjustment back into society appears to be going along well until "Mona", his real personality (as he is truly his sister Mona) begins to make her presence known. Charles gets mysterious notes from "Mona" at the house and dinner. Phone calls come from someone claiming to be Mona. The next day, a drunk Adrian picks a fight at the diner after Charles fires him. Later, a figure in a black dress stabs White to death with a butcher knife as he is packing to leave the camp. As Charles begins to reconstruct his family's camp, he begins to doubt his sanity when he begins hearing voices of himself as Mona. He enters his sister's bedroom to find it looks exactly as it did 3 years ago. A sound lures him to the attic, where he is locked in.

At the same time, a teenage couple, believing the house to be abandoned, sneaks in through the cellar window. They notice a female figure pacing in the next room. As they try to climb out, the boy is stabbed to death. The girl escapes and alerts the police. Mary eventually finds Norman in the attic. Minutes later, the sheriff arrives and questions them about the boy's murder. He finds the cellar neat and orderly. Charles is about to admit that something suspicious is going on, but Susan claims that she has cleaned up the basement herself. After the sheriff leaves, Charles asks Susan why she lied. She explains that she had to save him from being arrested. Charles collapses into the chair with his head in his hands and moans, "It's starting again!" Charles reveals to Susan he is actually a woman, his though to be handicapped sister Mona, and is aware that his is slipping into insanity again.