Having survived the peak of success somewhere in the mid-'80s, pop singer Gilles Gabriel knocks a model accountant Jean-Christian Ranyu on the road. Physically, Gilles dies but his mind paradoxically moves to Ranyu’s head, and now the body of the accountant carries two adult individuals. At first, this kind of "cohabitation" generates a lot of problems, but life is gradually improving. While Gilles brings the disappointing results of his not quite good earthly existence, Jean-Christian literally bites into the life with his teeth. Amazing transformation does not pass without leaving a trace of his professional career, especially in the eyes of his immediate boss.