Police Captain Kader Cherif knows the city like the back of his hand, and, as someone could say, never leaves his duty, because his apartment located on the first floor of the building opposite to the police station. He is assigned to investigate unusual murders in Lyon. Of course, he is using only legitimate methods which sometimes seem to be unusual and are displeasing his new partner Adeline Briard, police captain as well.

Candice Renoir had put her career on standby for 10 years. When she returns from Singapore to resume service in a port town in the south of France, she feels a bit “rusty”. Despite the obvious defiance of her unit and a cynical superior who doesn’t make her job any easier, she is determined to turn her so-called weaknesses into strengths, solving the most complex cases with her common sense, her acute observation and her practical nature seasoned by a busy daily routine. Only Candice can catch a killer because she knows the chemical composition of a window-cleaning product or determine the hour of a murder from the cooking-time of kebabs… Candice is only naive on the outside, and nobody can resist her!