Alma is a scientist coerced into participating in an extraordinary study in order to obtain research funds for her work. For three weeks, she has to live with a humanoid robot tailored to her character and needs, whose artificial intelligence is designed to be the perfect life partner for her. Enter Tom, a machine in human form in a class of its own, created solely to make her happy.

When David (36) learns that his friend Andreas (40) has taken his own life, the days of their once close friendship are long gone. They hardly knew each other. And yet David can't shake off his feelings of guilt over the suicide of his former best friend.

The three investigators want to go on a road trip during their vacation, but just as they are about to set off, the phone rings and an unknown caller hands the trio of detectives their latest case: the archaeologists belonging to the secret society Sphinx are carrying out illegal excavations and selling the stolen art treasures. Their next target is the supposedly cursed island of Makatao.

Inspector Dupin finds himself entangled in several mysteries at once: the discovery of a corpse on a remote Atlantic island, the mystery surrounding a Celtic musical instrument, and the search for the true cause of a tragedy.