False Positive is a 2021 American psychological horror film directed by John Lee from a screenplay he co-wrote with Ilana Glazer.

The couple have been trying to conceive for two years and decide to seek out Dr. John Hindle, Adrian's former teacher and a leading fertility doctor.

Lucy sneaks into a secret room labelled "The Lab" in the clinic, where she finds her removed placenta and reduced female fetus.

He has a refrigerator full of vials of his own sperm which are used to inseminate his female patients and spread his own bloodline further through the world through male births.

He attempts to drug Lucy but she kicks him and smashes his head with a mirror, then restrains him to a medical chair, after which she is attacked by a nurse, Dawn.

She drugs Dawn and beats Hindle bloody, destroying his refrigerator full of sperm vials and leaving the office with the fetus.

Arriving home, she imagines herself releasing the twins to float out the window (a reference to the Peter Pan and Wendy submotif of the narrative).

[3] In March 2019, Pierce Brosnan, Zainab Jah, Gretchen Mol, Sophia Bush and Josh Hamilton joined the cast of the film.

The website's critics consensus reads: "Its classic horror aims exceed its blood-slicked grasp, but False Positive works its way sneakily under the skin.

[9] The Hollywood Reporter gave the film a positive review calling it "a juicy genre entry" while conceding it "might not quite stick the landing.