A "married" couple, Christopher and Celia, arrive from London to spend some time in Mykanos, an island off the coast of Greece. Christopher is an avid photographer. After arranging a place to stay from a homosexual storeowner, they begin to explore the quaint village. That night they attend a party and meet many of the locals, including an elderly rich woman and a lesbian pub worker. The next morning, Christopher has sex with a goat and slaughters it. The couple runs into a French painter in a cafe. They play a perverted sex game with him (they pretend to be cousins and Celia solicits the artist). They meet him the next day at the church where he is working. After ravishing Celia, Christopher shows up and crucifies the poor sod in the church courtyard. While still in agony, they poison him by forcing him to drink paint. The gay man invites Christopher and Celia to his engagement party. After the soiree, they show up in the couple's bedroom. Celia kills the young lover with a gunshot in the mouth. Christopher chases the storeowner down the back streets of the town, a sword in hand. He disembowels him. During each crime, the couple has taken pictures of their horrible deeds. They go back to their home and develop the photos. Christopher enjoys masturbating to them.
Apparently, the couple has committed similar atrocities in Britain. A detective tracks them down in Greece. They surprise him in the private plane he has hired. They tie a rope around his neck and take off into the air. Though he hangs on for dear life, he eventually falls to his death. Christopher arranges a rendezvous with the socialite. He urinates on her and then, after an aborted attempt at sexual congress, he beats her to near death and then decapitates her with a bulldozer. Celia no longer enjoys this life of crime. Some hippies sexually assault her. Christopher kills them both. He gets angrier and decides to use Celia as bait to kill the lesbian (who is also a heroin addict). After a torrid seduction, he gives the junkie a lethal overdose and then burns off her face with a homemade blowtorch. A novelist interested in the deaths on the island links Christopher to the lesbian's death. The police give chase and Christopher and Celia end up on a sheep herder's ranch. The simpleton rapes Celia and throws Christopher in a pit of lime. Celia, amazingly, likes her new agricultural lover. She refuses to help Christopher, who it turns out is her brother, and he dies in the lime as rain causes it to turn caustic. Celia explores sexual passion with her farm hand. The end.
