Loft

Five close friends, all of them married, share a loft to meet their mistresses. One day they find the body of a young woman in the loft. Since there are only five keys to the loft, the five men begin to suspect each other of murder.

Loft is a 2008 drama mystery movie directed by Erik Van Looy, starring Koen De Bouw, Filip Peeters, Matthias Schoenaerts. It holds an IMDb rating of 7.2/10 from 26,052 votes and runs 1h 58m.