Copywriter Lucy Martin lives with her husband Adrian in Manhattan. The couple has been trying to conceive for two years and decide to seek out Dr. John Hindle, Adrian’s former teacher and leading fertility doctor. Later, she becomes pregnant after Dr. Hindle inseminates her, using a technique he invented. During an ultrasound she discovers she is pregnant with three embryos: two male twins and a female. Considering the circumstances, Hindle suggests a selective reduction; either the twins or the female embryo are terminated to ensure a healthy pregnancy and birth. Adrian and Lucy decide to have the female baby. Lucy joins a group of expecting mothers, where she befriends Corgan, who got pregnant using IVF. Lucy discovers Grace Singleton, a spiritual midwife with a natural approach and develops a fascination with her.False Positive 2021.
During the reduction, Lucy passes out and hears Adrian and Hindle talk. Later she bleeds strongly from her uterus, which Hindle dismisses as a common instance. Lucy meets with Corgan who shares that she is having complications with her pregnancy. Adrian presents Hindle with an award and Lucy grows wary of him. That night, Lucy finds a safe in Adrian’s office and later shares with Corgan that she has growing suspicions that Hindle did something to her unborn daughter and Adrian is aware. Corgan assures her that it is just “mommy brain”. While watching a video on Grace’s website, Lucy hallucinates a meeting with her. After Lucy has further complications, including abdominal pain, Hindle blames this on antenatal depression and prescribes her medication. Lucy meets with Grace and shares that she lost her mother two years ago. After having a dream where she sees Hindle and Adrian having sex, Lucy opens Adrian’s safe and finds a file on her, including evidence that she is being monitored. She shares this with Corgan, who takes the file to show her lawyer husband and suggests that Lucy behave normally until she knows more. Lucy confronts Adrian, admitting she doesn’t feel safe with Hindle, that she wants to switch to Grace, and that she will quit her job.