Hollywood star Marina Gregg leaves Los Angeles for the picturesque countryside of St Mary Mead. Having taken up residence at Gossington Hall with her dashing young English husband, film director Jason Rudd, his secretary, Ella Blunt and Marina's exclusive personal assistant, Hailey Preston, it's not long before she becomes lady of the manor. When the glamorous couple decide to throw a benefit for the St John Ambulance, the grounds are abuzz with curious locals including previous owner of Gossington Hall, Dolly Bantry. But when a local fan, Heather Badcock consumes a poisoned daiquiri, Marina finds herself starring in a real-life mystery - supported by Miss Marple and Inspector Hewitt, who suspect that the lethal cocktail was intended for someone else. But who? If it was meant for Marina, then why?