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's walk on the wild side with April leads to an interesting dinner party with Rob's boss; A visit from Simone's daughter Amy threatens to derail Tommy's plan; Taylor, Jade and Eli get mixed up with Jade's crazy ex-boyfriend Duke.

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.