The Godsend

A pregnant stranger is welcomed into the Marlowe home. Kate helps deliver the baby girl, while Alan senses something off about the visitor who stares intently at him. After the birth, the stranger disappears, having abandoned Bonnie with the family.

During a family picnic, Davy wanders away and drowns in a creek. Bonnie is found on the bank with scratches on her hands, which the family later interprets as Davy trying to save her. The tragedy unsettles the parents and foreshadows dark events to come.

Bonnie begins to break belongings around the house, and Sam is blamed for the incidents despite his protests. Kate attributes Sam's jealousy to Bonnie's influence, deepening the brothers' tension within the family. Alan remains uneasy about Bonnie's behavior.

During a game of hide and seek, Sam is discovered dead in a barn. Alan finds the body while Kate discovers Bonnie's ribbon near the scene, hinting at Bonnie's possible involvement. The tragedy further unsettles the family and deepens the mystery surrounding Bonnie.

The family begins receiving letters accusing them of killing their children, plunging Kate into depression. A reporter's visit to their home worsens her distress, and Alan contemplates a move to London to escape the scrutiny. The letters escalate the sense of external judgment surrounding their tragedy.

A reporter's intrusion prompts Alan to agree to relocate the family to London. The move represents a bid to escape rumors and find a fresh start, though Kate remains unsettled by Bonnie's presence. Bonnie's impact continues to loom over the family as they prepare to leave.

Bonnie falls ill with mumps, and she deliberately kisses Alan while he naps. He too becomes ill and experiences a dream-like flashback about the deaths of his sons, with Bonnie always near in each memory. The unsettling symptoms deepen his suspicion of Bonnie.

At a playground, Bonnie intentionally causes an unoccupied swing to collide with Lucy's path. The chain tangling moment nearly harms Lucy, but Alan manages to save her. He expresses his concerns about Bonnie's influence, while Kate refuses to see the danger.

Troubled by Bonnie, Alan kidnaps Lucy to coerce Kate into choosing between Bonnie and Lucy. He confronts Kate, who refuses to decide, and he leaves, furious and desperate. Their disintegration deepens as the rift between them widens.

Alan rushes back to London and learns Kate has been in an accident and is hospitalized. She reveals she was pregnant but miscarried due to the crash. The loss compounds the family's turmoil and shatters any chance of reconciliation.

Back at the apartment, neighbor Mr. Taverner informs Alan that Kate tripped over a doll at the top of a staircase. He also reveals that Mrs. Taverner has taken Bonnie on a trip, removing her from the home. The situation leaves Alan with more questions about Bonnie's influence and safety.

At the apartment, Kate's attempt to separate from Bonnie collapses as Bonnie locks Lucy in with her. Bonnie uses mind control to force Lucy to leap from a window to her death. Alan arrives too late to stop the tragedy, and the event cements the belief that Bonnie is responsible.

Alan attempts to kill Bonnie, but Mr. Taverner intervenes and pulls him off. Kate decides to stay with Bonnie, and Alan leaves the family. The rift between them deepens.

In a park, Alan spots the original pregnant woman who birthed Bonnie, now pregnant again, speaking with Bonnie's mother. He runs after them to warn the family, but they have disappeared, leaving the mystery unresolved. The closing scene suggests a cycle continuing beyond the family.