Strul (1988)

Conny is a chemistry teacher who is framed for drug possession. Unable to prove his innocence he ends up in prison. When he finds a secret exit some inmates "persuade" him to participate in a heist. Things become extremely hectic as he tries to prove his innocence as well as "helping" his inmates. When Conny thinks that it couldn't possibly get any worse he meets Susanne, a policewoman...