666: In Bed with the Devil (2002)

Sinopsis

Frank Faust is a born loser. At some point it even becomes too much for his great love, Jennifer, who leaves him and flees to Munich. Frank's desperation is the best reason for Mephisto to show up and offer a suitable pact: reconciliation with Jennifer in exchange for Frank's soul. Shaken by his predicament, Frank finds it easy to agree to the hellish proposal. In order to win back his renegade lover, Mephisto transforms himself into a wide variety of prominent contemporaries who appear at Frank's side and publicly praise his qualities - especially for Jennifer to hear. The plan seems to be working perfectly, unless Mephisto suddenly reveals a completely new side to his personality...