An ailing Poirot returns to Styles with Hastings nearly three decades after solving their first mystery together there in order to prevent an unscrupulous and ingenious serial killer from claiming…

Desperate for proof of Gates’s corruption, Fleming pushes her relationship with him to the limit. But her behaviour causes Morton to question if she might not be such a loyal…

Arnott is convinced Gates played a part in Jackie’s disappearance. With Fleming’s help, the anti-corruption team tries to trap Gates into revealing his involvement in covering up Jackie’s crimes.

Having been duped into covering up Jackie’s crime, Gates is desperate to sever ties with her. But, as Arnott and Fleming close in on his secret, Gates is plunged into…

After learning about a new service that lets people stay in touch with the deceased, a lonely, grieving Martha reconnects with her late lover.