When Inspector Adams uncovers a corpse sealed inside an airtight bag, he enlists Ed to investigate the cause of death despite his initial hesitation about the moral weight of it.

A new body is discovered, prompting Inspector Adams and Dr. Anna O to call Ed; Cleo uncovers something gruesome at home; Leslie comes to Ed’s aid during an urgent situation.

Ed steps back from the investigation to work with a new client whose grandmother died in mysterious circumstances; Dr. Anna O finds herself with another corpse and no clear answers.

Ed continues assisting with the murder investigation in secret, concerned that Cleo remains unaware; Inspector Adams escalates his undercover efforts; Dr. Anna O pushes Ed to confront his past.

As Leslie finally goes on a date with midwife Mike, Ed's marriage deteriorates sharply; Dr. Anna O pieces together the evidence around the corpse; Ed receives a strange proposal from a notary connected to his past.

The Bex family struggles to recover after an accident; a surprising victim emerges, drawing Inspector Adams and Dr. Anna O closer to understanding the killer’s motive.