Selwyn's return to Saint Marie is disrupted by a dramatic passing 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.

Mervin and the team are left perplexed when a reclusive pensioner is shot dead in his home. A prime suspect is quickly established in the form of an unassuming accountant. The evidence seems damning - a figure matching the suspect's description was witnessed fleeing the crime scene. And when questioned, there's clearly something shifty about this guy. The only problem? He's got a rock-solid alibi. Meanwhile, the commissioner is determined to get the islanders back on side with a community-focused initiative. But tensions rise when Mervin goes rogue during the launch event.

Mervin and the team are called to a local church to investigate the passing 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. And 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.