Selwyn’s return to Saint Marie is disrupted by a dramatic death at his offices, where a man has fallen from the roof. Meanwhile, a new family connection arrives in Mervin’s life.

A couples therapist is found drowned at sea off the coast of her exclusive retreat, and Mervin gets more than he bargained for when he tracks down his wayward brother.

The team are left baffled when a reclusive pensioner is shot dead in his home. And tensions rise as Mervin forgoes the commissioner’s new initiative.

Mervin and the team are called to a local church to investigate the death of an elderly parishioner in a case that hits close to home for Officer Rose.

The team is challenged by a perplexing poisoning during a performance of The Tempest. Meanwhile, Mervin must decide what to do about a difficult development involving his brother.

Mervin gets embroiled in a confounding case when he goes in search of his brother on Antigua. The team must uncover their detective’s whereabouts before it’s too late.

The team investigate the poisoning of a local newspaper’s notorious agony aunt. And after the case in Antigua, Mervin grapples with his feelings about his brother.

A death at sea with unexplained injuries stirs rumours about a legendary sea monster, the Lusca. Meanwhile, Mervin is blindsided by an unexpected young visitor.