After giving up their jobs to be full time investigators, Gemma and Terry have a valuable collector's item in their possession; the murderous Bunnyman will stop at nothing to acquire it.

A turf war between two bakers leads to food poisoning at an amateur dramatic society.

There's a killer on the loose, and Gemma and Terry's coach tour knowledge is the key to helping police.

Terry and Gemma take a detour on the way to their wedding in order to solve a mystery at a therapy retreat. Once there, they find a pair of camp leaders with some odd ideas about therapy and get into an ordeal that challenges their own relationship.

Before they can finally marry, Gemma and Terry must solve the murder of a wedding guest. However, their other wedding guests, especially Gemma's mum, turn out to be an obstruction that they could really do without.

With their relationship in trouble, Terry is forced to reconnect with an old friend at the same time as Gemma investigates crimes solo; when Gemma teams up with Monica, they discover shocking activities in Terry's past.