A killer has found a way to kill women without committing the crime. He gets them to fall in love with him, like Isolde falls for Tristan in the epic poem, and then he leaves them. Heartbroken they choose suicide, just like Isolde.

Four friends from Paris are living misadventures of all sorts in Spain when their group of travelers is forced to split due to a travel scam.

Mado is followed in the street by an unknown man. He offers her to go the hotel. She accepts, they sleep together and then split. Mado does not want to see him again, because she is married with Jean, and has a teenager son, Stephane. But Yves gave her his phone number. One day, Mado calls him.... An unusual love story.