Cheeky (2000)

In London, the Venetian Carla Borin is searching an apartment to share with her beloved boyfriend Matteo. She meets the lesbian real estate agent Moira and rents a large apartment.

When the jealous Matteo finds some pictures and letters from her former lover Bernard in Venice, he hangs up the phone and the upset and amoral Carla has a brief affair with Moira and intercourse with an acquaintance in a party. When Matteo comes to London, he concludes that his lust for Carla is more important than his jealousy and her behavior.