It started off with an interesting storyline, The Ring Saga and the safes names based on the Saga by Wagner. Intriguing. But then you have an actor like Matthias Schweighöfer who acts like a clown who wants to entertain children. Not funny if you are older than 10.
To include zombies is taking away from the Heist story which would be interesting enough on its own. Also this part is neither scary nor funny.
I give it one star for the storyline at the beginning. Unfortunately a missed opportunity.