The Identicals

In mid-July, Franklin secretly renovates Billy Frost’s house for Tabitha, using off-island workers to maintain privacy so Sadie won’t know what he’s doing. When his parents summon him to a family dinner, Franklin lies about his whereabouts. During the dinner, he observes that his sister, Sadie, appears emaciated and unwell.

Three days later, Franklin’s carpenter, Tad, is involved in a minor parking lot accident. Harper’s ex, Drew, arrives and overhears that Tad is working at the Frost house. Drew pressures him into revealing that Franklin hired him. At the police station, a dispatch assistant overhears the details and calls Franklin’s mother, Lydia.

A few days after Emma’s shoplifting arrest, Ainsley learns Emma is being sent to boarding school. Candace visits the boutique to apologize for betraying Ainsley. She and Ainsley agree to mend their friendship. Later, Ainsley calls Tabitha and learns that she’s renovating Billy’s house instead of tearing it down. Tabitha harshly criticizes Harper’s management of the boutique, but Ainsley defends her.

Ainsley relays the news to Harper, who becomes furious and has a heated argument with Tabitha over the phone. The following day, Harper receives word that Brendan has died by suicide. Ainsley sets aside her own problems to comfort Harper and plans for them to travel to Martha’s Vineyard.

On the night of the Phelps family dinner, Franklin returns to Billy’s house drunk. Tabitha tells him about Julian’s death. The next day, Franklin is noticeably distant. That evening, he receives a phone call and disappears. Overcome with anxiety, Tabitha takes an Ambien and sleeps for 15 hours.

When she wakes, Tabitha learns no one has seen Franklin. Determined to understand why, she drives to his house to confront him. They share a passionate reunion, but he ends their relationship. He explains that his sister, Sadie, is emotionally fragile and could not handle him dating the identical twin of the woman who had an affair with her husband. Despite admitting he is falling in love with Tabitha, Franklin insists he must prioritize his family.

Harper and Ainsley take the ferry to Martha’s Vineyard. They visit Brendan’s mother, Edie, who assures Harper she’s not to blame for Brendan’s death. During their conversation, Harper confesses to Edie that she’s pregnant, noting that the child is not Brendan’s. Edie offers Harper the use of Brendan’s vacant cottage for as long as she needs it.

Later, Harper goes to Billy’s house alone and is stunned by the scale of the renovation. She finds Tabitha upstairs, devastated over her breakup with Franklin. Tabitha immediately blames Harper for ruining her life, igniting a massive confrontation. They argue about their past, the night Julian died, and Harper’s affair with Reed. Tabitha orders Harper out of the house. Heartbroken, Harper collects Ainsley, and they leave the island.

After Harper’s departure, Tabitha feels abandoned and vengeful. She goes to a beach to drink wine and thinks about the night in August 2003 when Julian died. In a flashback, she recalls how Harper arrived to help and persuaded an exhausted Tabitha to go out, leaving Tabitha’s husband, Wyatt, in charge of baby Julian. When they returned, they found Julian unresponsive in his crib. He was pronounced dead at the hospital, and Tabitha has blamed Harper ever since.

Back in the present, fueled by grief and a desire for revenge, Tabitha locates Reed’s rental cottage. When he answers the door, he mistakes her for Harper. Playing along, Tabitha steps inside, intending to impersonate her sister and seduce him.