Spunky senior sleuths and an overtired, overstressed, undersuspicious medical intern live in an elegant apartment building where old ladies start to die. Mrs. Bridge falls off a stool cleaning bugs out of her kitchen light. Mrs. Talwin slips on bubbles in the bath and drowns. Suddenly, the Pacific Heights building is turning over tenants faster than the fog rolls in on a cool San Francisco evening. Is it murder? Will one of them be next?