Contractor Martin Netzer was skull-smashed on his latest building site. Fresh widow Kristine Netzer fails to hide he wanted a divorce, she suspected he was hiding his assets and contacted their bank officer Verena Klüver. Foreman Milan Petrovic illegally engaged fellow foreigners. Rico Sander finds Netzer's dodgy building ruined several clients, notably laborer Peter Schott, whose bank is about to foreclose his loan after he had to cancel his lease and moved into the the utterly unfinished, unhealthy house. Peter Schotts alibi is as fake as his wife Maria's while their sock kid daughter needs proper lodging. Desperate moves follow, while Rico works out diabolical financial machinations.