During a psychiatric discharge exam, patient Chaim Potter, a general practitioner, is tested to see if the hallucination of his dead girlfriend, Keira Kennedy, still controls him. He insists "I am Chaim" and denies seeing her, but an inner voice cuts in with "Liar," while examiners read Keira’s death report—found at Temis Peak campsite with severe injuries and ruled accidental. Doctors clear Chaim for discharge, yet staff worry after a wedding invitation and warnings that he might "merge" with his imagined lover. The episode ends with caregivers debating who will watch him as the risk remains.
At the grand wedding of Hart heir Walter Hart and Mckay heiress Zoie Mckay, the couple surprises guests with a 100-million cash raffle. Mid-celebration a commotion at Temis Peak: someone cries, "Is she back?", Felix is the first to spot a woman presumed dead. Guests refuse to believe resurrection and accuse foul play; someone says, "Someone must be behind this," while family blames Walter's jealousy and urges him to deal with the fallout. Walter and Zoie cling to each other, but the cause and truth of the woman's return remain unresolved.
At a campsite Keira is restrained; she screams for help while someone arrives saying, "Sorry, Keira, I'm late." Her captors mock her, call her filthy and force her to watch as they discuss a nearby proposal cake. They threaten to 'waste' the cake and 'plan a new one,' enjoying the scene. Walter boasts that "my dad will settle this" and is praised, while one captor says he hopes Keira's fiancé "likes her present." The episode ends with Keira still held and her fate—and the proposal—left unresolved.
Keira is held captive and repeatedly called by name while an unseen captor taunts her — "It's the most fun I've had in ages," mocks her struggles and threatens, "I'll kill them," adding, "I hope her fiancé likes her present." The taunting escalates into repeated kill threats as Keira fights. In a separate moment Mr. Potter confirms, "Just like you predicted — Felix has been sent to our sanatorium," and someone answers, "Got it." With Felix sent away and Keira still trapped and threatened, the episode ends with her fate unresolved and danger looming.
In the Mckays' sanatorium a furious visitor demands, "Wake him up now to tell me who messed with the wedding." Felix is in critical condition; the requester says Zoie won't wait and threatens staff, insisting Mckays' money should force an awakening. The doctor, who is also the sanatorium director, refuses, saying a forced awakening could kill Felix and he won't risk the patient. The visitor replies with a counterthreat—he can keep staff stuck at the hospital with one word. The episode ends in a tense standoff: Felix's life and the director's freedom hang unresolved.
An unnamed figure warns, "With just one word, I can keep you stuck here for life," orders preparations and Dr. Potter complies. Chaim is warned to be careful—if the wounded man wakes he might recognize who hit him. Felix regains consciousness and is asked who attacked. He says it was a man and that he didn't see clearly. With surveillance closing in they can't secure a reliable ID. Felix's unclear answer spares Chaim for the moment, but surveillance's arrival and the threat leave them racing to identify the attacker before the scene is sealed.
Ms. Pearson begs Dr. Potter to keep a critically ill man alive after 'time's up.' Potter can hold the patient awake for five minutes but warns repeating the emergency method will kill him. His heartbeat slows as staff scramble and Potter says he rescued him just in time; otherwise they'd have no chance to question him. Ms. Pearson says she doesn't care if he dies so long as he can answer her. The episode ends with the patient unstable, the five-minute limit looming, and a voice greeting Zoie while Felix remains unresponsive, leaving crucial answers unresolved.
After Anna nearly kills Felix, someone confronts Chaim, asking why he saved Felix instead of letting the attack succeed. Chaim says he didn't save Felix to help him but to plant a seed in his heart. He and Keira exchange "I love you." Later Anna is berated by a superior who calls her "trash," blames her for ruined footage and tells her she'd still be a "lowly little hooker" without him; Anna denies sabotaging the footage. The episode closes in a sanatorium where Ms. Mckay asks, "Who are you? Have we met before?" Loyalties and Anna's fate hang unresolved.
Staff introduce the sanatorium's new director to Ms. Mckay as others warn him not to interfere; they reveal the facility is run by Ms. Mckay's family and her wedding scandal was scrubbed, so he's ordered to find the truth in a week. Later Ms. Pearson arrives with suspected subcutaneous hemorrhage. Dr. Potter treats her despite earlier mistreatment, sedating her and promising to fix her swollen face. Staff gossip about the director's family. Mocking comments and whispered commands — "Kill her" — escalate until someone snaps, "I will kill them," aimed at Dr. Potter, leaving immediate danger unresolved.
After his 144th evaluation at a remote psychiatric hospital, the dangerous patient Chaim Potter is declared fit and released. No one suspects he is unchanged: he still sees his murdered fiancée Keira Kennedy—sometimes an angel, sometimes a demon—demanding vengeance. Four years earlier, on the day he planned to propose, Keira was assaulted and killed; Chaim arrived in time to watch four men laugh as they walked away. Now free, and with his faithful butler Devon Walsh having arranged the plan, Chaim targets the wedding of Walter Hart and Zoie Mckay. He brutally attacks Felix Lindsey, a groomsman and one of the perpetrators, and has his body dropped into the ceremony while funeral money printed with Keira’s death rains down. Walter, Zoie, and bridesmaid Anna Pearson grasp at once: a cold, calculated revenge has begun.