You Should Have Known

When retired nurse Frannie Greene moves into a senior living apartment, she finds a compelling friendship with her new neighbor Katherine-only to discover that Katherine is married to the judge Frannie believes is implicated in the death of her beloved granddaughter. Observing the medication cart sparks Frannie's darkest imagination, and her desire for revenge combines with her medical expertise. In one dreadful, impulsive moment, she tampers with the medicine. However, the next day, someon...