After overseeing major projects as a construction manager for many years and having traveled all over the world, Peter is taking early retirement. First of all, he has big plans for the new phase of his life: he can finally make up for a missed togetherness with his wife Charlotte, a successful scientist who will soon follow him into retirement, and write his long-awaited novel. The reality, however, soon turns out to be far less romantic: Charlotte has little time for her husband because of her job, and Peter can't even get past the first sentence in his novel.
Unfortunately the movie Was glücklich macht is not yet available on HBO Max.
| Directing | Matthias Tiefenbacher | Director |
| Production | Lutz Weidlich | Executive Producer |
| Sound | Karl-Heinz Laabs | Sound |
| Sound | Udo Hilbert | Sound Designer |
| Camera | Pascal Mundt | Director of Photography |
| Art | Detlef Provvedi | Production Design |
| Costume & Make-Up | Nicole Stoll | Costume Design |
| Editing | Ulrike Leipold | Editor |
| Production | Iris Kiefer | Executive Producer |
| Production | Katja Kirchen | Producer |
| Writing | Edda Leesch | Writer |
| Production | Katrin Kuhn | Producer |
