Roos Hartman is a young doctor who lives with her son in a large apartment complex. When a fellow tenant is brutally murdered, the police and Hartman's friends suspect her mysterious neighbour, Eric Coenen. As she becomes romantically involved with Coenen, she doubts he would commit such a crime, but soon she begins to investigate the case further and discovers some startling facts relating to his involvement..
Unfortunately the movie De Flat is not yet available on HBO Max.
| Camera | Theo Bierkens | Director of Photography |
| Sound | Patrick Seymour | Original Music Composer |
| Directing | Ben Verbong | Director |
| Writing | Jean van de Velde | Screenplay |
| Production | Haig Balian | Producer |
| Production | Chris Brouwer | Producer |
| Production | Arnold Heslenfeld | Executive Producer |
| Art | Rikke Jelier | Art Direction |
| Costume & Make-Up | Yan Tax | Costume Design |
| Sound | Peter Flamman | Sound Engineer |
| Editing | Bert Rijkelijkhuizen | Editor |
| Editing | Ben Verbong | Editor |
| Production | Patricia McMahon | Executive Producer |
| Costume & Make-Up | Floris Schuller | Special Effects Makeup Artist |
| Art | Alfred Schaaf | Art Direction |
| Costume & Make-Up | Kathy Kühne | Makeup Artist |
