Nurse Laura Harriman (Lisa Zane) is out to get revenge on Bob Martin (Michael Fairman) and his family. See Laura's dad was so distraught over an embezzlement charge that he killed himself and the rest of the family, leaving poor Laura alone, confused and mentally unstable. Fortunately for her, Bob has a stroke, leaving him completely incapacitated (his fully alert self inside an expressionless body), so he's in need of full time care, so Laura quits her job at the hospital and signs on as the live-in nurse. She seduces the son (John Stockwell), arouses suspicion in the daughter (Janet Gunn) and starts to do away with everyone (often right before the father's eyes). Good acting, particularly from the deliciously wicked Zane, and an overall air of nastiness save this oft-clichéd bitch-from-hell flick (with a rather poor ending) from boredom.
