Christopher and Celia rent a home on the Greek island of
Mykonos for their purported
honeymoon. The locals believe them to be a normal newlywed couple; however, Christopher and Celia are, in fact, sexual
sadists and murderers and have left
London to venture on a killing spree abroad. The morning after their arrival, Christopher becomes aroused and
rapes a
goat and then kills it. The two then meet a French painter who is attracted to Celia. The two nail him to the ground in a crucifixion pose and pour paint down his throat until he chokes to death. They then dump his body in the ocean. While getting acquainted with the island locals, the couple meets Patricia, a wealthy older woman, and are invited to a
gay wedding between a middle-aged American on the island and his Greek lover. Christopher and Celia break into the couple's house on their wedding night. Christopher chases the elderly man into the streets before stabbing him to death; Celia shoots his lover in the head with a pistol and stages it as a
murder-suicide. After this, the couple kills Foster, an American police officer who had been trailing them, by
hanging him from his plane and flying it over the ocean. Celia begins to resist Christopher's murderous escapades and hesitates when he targets Patricia. He arrives at her house, and the two begin to have sex while Celia watches from a window. Christopher urinates on her and beats her unconscious before taking her body outside and decapitating her with a
bulldozer. The next day, while Christopher goes fishing, two
hippies attempt to rape Celia while she is taking a bath. However, Christopher returns home to discover them in the act, leading him to murder one with a
speargun and drown the other in the toilet. Christopher targets a local
lesbian bartender, Leslie, who is romantically interested in Celia. Celia visits her house, and Leslie invites her to do
heroin; Christopher then enters and knocks her unconscious before injecting her with a lethal dosage. After she dies, he uses an
aerosol spray and a candle to burn her face. Celia begins to dream of a mysterious man and worries that the small size of the island will lead to police suspecting her and Christopher in the string of deaths. When a local crime writer finds Leslie's body, the police begin to search for Christopher and Celia. They flee to a remote farm on the island to hide and meet a
mute shepherd who turns out to be the man of whom Celia has been having
premonitions. It is then revealed that Christopher and Celia are brother and sister and have been engaged in an
incest relationship. The following day, the shepherd rapes Celia in the barn and then knocks Christopher unconscious before
anally raping him. He then throws Christopher into a
lye pit, and Celia becomes
attached to the stranger. A rainstorm arrives on the island, and Christopher dies in the lye pit while Celia and the shepherd engage in sex. ==Cast==