The Invisible Witness

Il testimone invisibile is a movie starring Riccardo Scamarcio, Miriam Leone, and Fabrizio Bentivoglio. Adriano Doria is "the entrepreneur of the year" in Milan.He drives a BMW, wears a flamboyant Rolex, has an adorable wife and...
Adriano wakes up in a hotel room next to the dead body of his lover, Laura. The door is locked from the inside and there is no evidence of anybody else in the room.