One evening, Etienne, a police officer from the BAC, and Christian, his teammate, witness the assault of a young girl. But the killer manages to escape, seriously injuring Christian. Shortly after, Etienne discovers, on the one hand, that Angèle, the woman who left him seven months earlier, is about to give birth and that his new boss, Alex Le Guen, is none other than the man he spent the night with after a drunken evening.
Josephine Delamarre is a guardian angel that Heaven sends to earth. With her psychological insight, ability of persuasion and magical powers, she manages to help people who have problems. She appears at the beginning of each mission; when the mission is completed, she disappears with a click of her fingers.
