Nora and Mimi experience their first slaughter at a farm and find themselves caught up in a very unusual investigation: the animals were being fed human flesh. The investigation focuses on inheritance disputes, modern pig farming, the financially successful Conrad Meede—who married into the family—his wife Melanie, and Carsten, Conrad's wayward brother. The first step is to determine the identity of the deceased.

Claas lures Nora and Wibke to Captain Heintje Hansen's bachelor party at the "Zum alten Kutter" sailors' club with false promises. After 50 years of waiting, the old sea dog finally wants to marry his beloved Helga Wartberg. However, the celebration comes to an abrupt end when the bride-to-be abruptly breaks off the engagement in front of the assembled crew, and shortly afterward, nurse Muriel Schwarz is found dead. It quickly becomes clear: it was murder! Equally troubling: the balcony at the nursing home from which Muriel fell is right next to Rayk's father's room—and he has vanished without a trace since the crime.