When a wealthy matriarch is strangled to death during a video call with her relatives, the woman's daughter employs the services of the Wild/Reid Detective Agency.
A man from Orla's past begs for her help: Ben Finnegan is on the run from the police, framed for murder, and being hunted by a killer with a crossbow. The only person Orla can turn to is the last one she ever wants to ask for help - Harry.
A stuffy dinner party in the home of Harry's former colleague goes awry when a vomiting bug hits all the guests but Harry; after the cause of the sickness is traced to a dead body in the home's well, Vicky Boyle leads the investigation.
Zoe McCann is a recovering addict fighting each day to slay her demons; when she is abducted only to wake up in a forest wearing a vintage ballgown, her sanity and resolve are pushed to the limit.
The popular owner of Fergus's boxing gym is found murdered in the Dublin Mountains. The gym was in debt, and the dead man had trouble with both his future wife and his ex-wife. Fergus asks Harry to help him find the killer.
Harry, Fergus, and Lola are invited to a murder-mystery party in a hotel on a secluded island. The fun quickly turns deadly as they realize a real murderer lurks among them, willing to kill everyone present.
A violent storm traps Harry, Fergus and Lola in the local pub; cut off from the outside world, the trio are put in even more peril when they discover a kidnap victim in a car.
After Ray Tiernan, Harry's ex and Charlie's mentor, is murdered while running a secret investigation, Harry and Fergus will stop at nothing to find his killer.
The matron of honour is poisoned at a bachelorette party even though all the others were sharing the same bottle of champagne. Harry and Fergus try to figure out how she was poisoned.