In the middle of a performance of the play "Le Cocu", a bad boulevard comedy at a Parisian theatre, Yannick gets up and interrupts the show to take the evening back in hand.
In the hospital where she works in Brest, France, a lung specialist discovers a direct link between suspicious deaths and state-approved medicine. She fights single-handedly for the truth to come out.
During a trip to Denmark, a man is arrested and accused of murdering his wife and three children. Though maintaining his innocence, he remains jailed as police investigate.
