Having a life he wishes filled with diverse and varied pleasures, Lorenzo leads a double life between his wife and his mistress. However, he finds himself trapped when he has to leave with her for Lapland, as his dear and loving decides to return home earlier than expected. Phil, his best friend, then gives him a bizarre idea which will prove to be decisive: Lorenzo must call on his twin brother Luc! The ploy works, until the differences in each other's behavior become too visible. Then follow incredible and obviously sulphurous adventures, where each wishes to take revenge on the other in the most perverse way possible ...