S4 • E13 Dec 20, 2016 43m
6.4
Old-fashioned bug-buster Henner Bocht and two kid bystanders are injured when his trick is blown up with remote control. Although he won't hear of it, prime suspect is former trainee and now market-leader Seiffert, who uses modern equipment. Heldt also looks at the clients, including a senior tenant refusing to move out and fancy heirloom chef Nadja Liebknecht whose reputation was ruined by a cockroach report but hides an even juicier kitchen secret, and Mario helps find a pattern.
