Simon Polt (Erwin Steinhauer) is no longer a gendarme. Arrived in retirement, he participates cheerfully in the Weinviertel on village life. When a corpse is found after a feast, his sense of right and wrong again becomes noticeable. The police do not see any third party debt. He sees it differently.

After his handler is killed, police dog Rex teams up with recently-divorced inspector Richard Moser to investigate crimes and solve mysteries on the streets of Vienna. And they sometimes get help from their two-legged friend, Inspector Stockinger.

After his handler is killed, police dog Rex teams up with recently-divorced inspector Richard Moser to investigate crimes and solve mysteries on the streets of Vienna. And they sometimes get help from their two-legged friend, Inspector Stockinger.