After finding a young man's remains, Léa wakes up in the 90s and body swaps seven times as she tries to solve the mystery of his death — and prevent it.

Marona, an innocent and empathetic little female dog, remembers the life she has shared with different masters, whom she has loved unconditionally.

Benjamin Rousseau is a high school teacher who uses an atypical method to help his students: philosophy. In each episode he tries to help a student and explores a philosophical theme specific to each one in order to help him or her but the worst thing is that his personal life is a complete mess, divorced he tries to solve his problems too, but unfortunately does not get anywhere.