Mathilde Roehrich

The story follows the Morels, including two teenagers and a 7-year-old kid who are driving their parents out of their minds. One morning, they all wake up inside each other's bodies.

Case 137 is seemingly just another case for Stéphanie, an investigator at the IGPN, the police of the police. But an unexpected element will trouble Stéphanie and transform case 137 into something more than a simple number.