Claire Rousset visits her ex-husband Pierre who lives in the Lyon region. For some time now, Pierre's health and that of the other inhabitants of the village has deteriorated to the point of becoming worrying.
This fast-paced mystery is in part based on a novel by Yves Ellena and is at least equally based on the 1943 classic Le Corbeau, which in 1951 was produced in English by Otto Preminger as The Thirteenth Letter. In this movie, someone is using a pirate radio broadcast to dish the dirt on the lives of the elite of a small French town.
Olivier Rohan, a young doctor, has just opened a general practice. However, having only a small clientele, he continues to work in the hospital's emergency room. One night, he will witness the unnatural death of a young man.
