One Pasadena, Calif. house serves as the focal point for three decades worth of marital strife. In 1963, Beth Ann's life as a doting housewife is upended when she learns of her husband Rob's infidelity. In 1984, socialite Simone is blindsided by her husband Karl's devastating secret. In present day, high-powered lawyer Taylor has an open marriage with husband Eli.

Beth Ann and Rob throw a housewarming party to introduce themselves to the neighborhood, but something seems to be amiss with neighbors Mary and Ralph. Hijinks ensue and secrets come to light when Simone and Karl have dinner with Amy’s conservative future in-laws. Tensions rise in the throuple after Taylor begins to question the living arrangement and reveals a dark truth about Eli.

Beth Ann recruits Sheila to help pull off her faux diagnosis, taking her already far-fetched plan another step too far. As Simone and Tommy arrange their European rendezvous, a revelation may foil their plans. Taylor reaches out to Jade in hopes of helping Eli battle addiction, but his new found riches have Jade only seeing green.