When the Harmon family relocates to a stately mansion in Los Angeles, disturbing secrets start enveloping each of their lives. As they slowly learn about the mysterious and deadly history of their new house, psychiatrist Ben, Vivien and their teenage daughter Violet find themselves surrounded by all manner of menacing spirits, living and dead.

Now married with a young baby, Love and Joe try to forge a normal life in the affluent suburb of Madre Linda. But old habits die hard.

Starting anew in London, Joe vows to bury the past and be his best self. But on the rocky road to redemption, a new obsession starts to take hold.

Long-lost twins Emma and Sutton separated under mysterious circumstances. Sutton was adopted by the wealthy Mercer family in Phoenix, while Emma grew up in the foster system. When the twins reunite as teenagers, they keep it a secret. While Sutton goes in search of the truth, Emma takes over her life and discovers more secrets and lies than she could have imagined.