After Jamie D, lead singer of Hot Boy 4, plummets to his death, Harry's granddaughter Lola feels certain it was murder and not suicide. She convinces Harry and Fergus to investigate for the sake of Jamie's pregnant widow, the fans, and the music.

When a renowned chef's girlfriend is brutally murdered, Harry and Fergus have to contend with a rival private detective, a gangster's henchman, and an utterly baffling mystery. Meanwhile, Paula makes a life-changing announcement.

The despotic director of a cheap, daytime Irish soap opera has his throat cut in the middle of a scene; Harry and Fergus must find the culprit so filming can resume.

A fellow P.I., Harry Benedict, inveigles his way into Harry’s life by sending her a particularly perplexing case. As Harry and Fergus attempt to work out how it’s possible for a mystery writer to shoot himself in a locked panic room without a gun, they find the key to cracking the case might come from a very surprising source.

The Vibrant Villages competition is fierce, with dirty tricks and sabotage galore; so when Harry's friend Evelyn Summers finds dead fish in her pond, she assumes it's more of the same-until she finds the corpse of her estranged husband there, too.

Harry and Fergus head to the Garda station to collect Charlie, Orla, and Lola en route to Glenn and Petra’s wedding. While there, a despondent man takes the station hostage and demands that they help solve the murder of his daughter. Concerned because Harry has the ring, Glenn comes to check on them and realizes he has a die-hard situation on his hands.