Elm Camp

Elm Camp (also marketed on Blu Ray and DVD as Psychopath) is a 2013 exploitation slasher film written and directed by Guillermo del Toro who also served as executive producer. The film is largely known for its twist ending which is considered by some to be one of the most shocking endings among horror films. The film stars Thomas Sangster, Bonnie Wright, Karen Gillan and Dylan O'Brien.

The film centers on the encounter between a model, Lisa Ray (Wright) and her group of friends who ends up at a distant summer camp after embezzling money from her father, and the camp's disturbed owner-manager, Charles Elm (Sangster), and its aftermath.When originally made, the film was seen as a departure from del Toro's previous films like Pacific Rim, having been filmed on a low budget, with a less known crew and in black and white. Elm Camp initially received mixed reviews, but outstanding box office returns prompted reconsideration which led to overwhelming critical acclaim and four Academy Award nominations, including Best Supporting Actress for Leigh and Best Director for Hitchcock.

It is now considered del Toro's best films and praised as a work of cinematic art by international film critics and film scholars. Ranked among the greatest films of all time, it set a new level of acceptability for violence, deviant behavior and sexuality in American films. After del Toro's departure from films in 2015, Universal Studios began producing follow-ups: three sequels, a television movie spin-off, and a TV series.

In 2016, the US Library of Congress deemed the film "culturally, historically, or aesthetically significant" and selected it for preservation in the National Film Registry.

Plot
The film opens in summer 1995, with Angela Elm (Maggie Smith) and her two children, Mona and Hank out on a lake. After their boat flips, Angela and the children head ashore, where Angela's husband, Brian (Bryan Cranston) is calling. They try to swim back, but are stuck. While unoccupied, a motorboat accidentally runs them over, killing Mona and Hank.

Seventeen years alter, Lisa Ray (Bonnie Wright) and her boyfriend, Derick (Lucas Till) meet for a secret romantic rendezvous during lunch hour at a hotel in Chicago. They discuss how they can barely afford to get a party with they and their friends. Lisa returns to work at a Lucas Dinner, where a client comes in with $40,000 ($318875.14 when adjusted for inflation) in cash to purchase a house for his daughter. The money is entrusted to Lisa, who decides to steal it and skip town alongside Derick and their friends Lana (Selena Gomez), Peter (Vincent Martella), Daniel (Will Pouter) Edith (Kaya Scodelario) and Peter's irresponsible uncle Shaw (Bruce Greenwood).

On the road, they pulls over to sleep and is awakened by local policeman Sheriff John Locke (Ron Perlman) who can tell something is wrong. Locke's lets them go as Shawn bribes him, but upon arriving in another town, the group pulls into a used car dealership and hastily exchanges her car for another one. Driving during a rainy night, they pulls up to the Elm Camp, a remote lodging that has recently lost business due to a diversion of the main highway. An old man named Joe (Stan Lee) reacts to the news of the the group locating there by warning Lisa and that the camp has a "death curse". The proprietor, youthful but nervous Charles Elm (Thomas Sangster), push out Joe, whom he says is a crazy drunk, and invites them to a light dinner in the parlor. Charles discloses that his father Brain is mentally ill, but he becomes irate when Lisa and the group suggests that he should be institutionalized. Shaw advises Peter that he was going to stay on the nearby town and would be back in some days. Edith then takes a shower in her room, during which a shadowy figure enters the bathroom and stabs her to death. Charles discovers Edith's dead body. Charles secretly wraps the body in the shower curtain and cleans up the bathroom. He puts Lana's body in the trunk of her car and sinks it in a nearby swamp.

At the camp, the group, Shawn and Charles, are refurbishing the cabins and facilities. As a storm closes in, Charles leaves the group to get more supplies. The unidentified figure arrives at the camp and begins to isolate and murder the remaining counselors. Later that evening, Charles returns from town and is also murdered. Lisa begins to worry after she hears someone screaming in the dark, so she and Peter, the only two left alive and unaware of what is going on, leave the cabin to investigate. The pair discovers a bloody axe in Lana's bed. They attempt to phone the police, but the phones are dead and the cars will not start when they try to leave. When the lights go out all over the camp, Peter goes to check on the power generator, alone. Lisa heads out looking for Peter when he does not return; she finds his dead body pinned to the door of the shed. Lisa flees back to the main cabin and hides, just to be killed by the unknown figure.

In NY, Lisa's sister Mary (Karen Gillan) and boyfriend Fred Cullen (Dylan O'Brien) are concerned about her disappearance. A detective named Jason Hill (Brad Dourif) confirms Lisa is suspected of having stolen $40,000 from her employer.