Resident Heinz Kehl's corpse floats in Altenheim rest home swimming pool. Someone stole Kehl's big winnings as dealer of illegal poker in the nearby cellar in which participated addicted Ursel Vogt, the seniors spokesperson, who was romantically involved with him and his clever roommate Lorenz Bruckner. However Bruckner's priority was devoted to his contraband cahoot, community service-paroled orderly Adem Jahovic. Home manager Ariane Boetsc was being blackmailed. A trap is set, with elderly precinct janitor Jan Arnaud undercover as new resident.
—KGF Vissers