Anne Merz wants to start an event agency with Jonas, the new man at her side. Unfortunately, she doesn't have the money, so her premature inheritance is to be decided at a notary appointment with her father Ludwig, who suffers from dementia. To the horror of Anne's unsuspecting mother Maria, Ludwig drops a bombshell at the appointment: There is an illegitimate daughter who is also entitled to the inheritance. Of course Anne is not going to take this lying down. She steps into the ring - for her money and for her father's love. While ex-husband Erik and his parents Renate and Günter get heavily involved in the family quarrel, son Leon is in trouble with his wife Soraya and her ex Rico.
Unfortunately the movie Merz gegen Merz - Geheimnisse is not yet available on HBO Max.
| Camera | Brendan Uffelmann | Director of Photography |
| Costume & Make-Up | Stephanie Fürst | Costume Designer |
| Directing | Inga Nerlich | Assistant Director |
| Directing | Felix Stienz | Director |
| Production | Gunnar Juncken | Producer |
| Art | Jay Mlinaric | Property Master |
| Writing | Ralf Husmann | Writer |
| Crew | Corinna Marx | Commissioning Editor |
| Art | Stephanie Schulz | Production Design |
| Editing | Martin Mayntz | Editor |
| Production | Henning Wagner | Producer |
| Lighting | Fabian Zenker | Gaffer |
| Sound | Marko Vinokic | Sound |
| Sound | Frank Maraite | Sound Mixer |
| Camera | Leo Sikstel | Assistant Camera |
| Crew | Carolin Heyman | Script |
| Costume & Make-Up | Mirjam Himmelsberger | Makeup Artist |
| Costume & Make-Up | Iris Müther | Makeup Artist |
| Art | Ann Katrin Hölz | Property Master |
| Production | Undine Simmang | Post Production Coordinator |
| Production | Nathalie Cloidt | Unit Manager |
| Production | Hendrik Lam | Production Manager |
| Production | Lisa Schmidt | Line Producer |
| Production | Carolin Klapproth | Production Manager |
| Production | Ralf Husmann | Producer |
