Valentine’s Day is fast approaching and business at Persimmon “Simmy” Brown’s flower shop is booming. But when Simmy fulfills a string of anonymous delivery orders, she is startled to realize that each contains a secretly menacing message for the recipients. When one of the people who receives a bouquet disappears, it seems that her worst fears have been confirmed. As if that isn’t enough, Simmy’s friend Kathy turns up, on the trail of her wayward daughter Joanna, who she fears has grown too close to one of her university tutors. When Kathy attempts to reason with her daughter she finds that Joanna’s older lover may be even more dangerous than she had imagined. With both Kathy and Joanna in peril, Simmy and her friends find themselves caught up in a web of deception, blackmail and murder . . .