Joan Scheller, eager to keep her romance with Sandy secret from her overbearing sister-in-law Olivia—a flamboyant former film star—pretends Sandy is her psychiatrist. As Joan’s white lie spirals out of control, the household is plunged into chaos with Olivia seeking relationship advice, a drama-prone neighbour, a troubled enforcer, and Joan’s gambling son all eager to confide in the “doctor.” Amidst the resulting mayhem, Joan and Sandy’s relationship is pushed to its limits by her tangled web of deception.