Greta is a 2018 psychological thriller film directed by Neil Jordan and written by Ray Wright and Jordan. The film stars Isabelle Huppert, Chloë Grace Moretz, Maika Monroe, Colm Feore and Stephen Rea, and follows a young woman as she befriends a lonely widow who becomes disturbingly obsessed with her.

Greta held its world premiere at the Toronto International Film Festival on 6 September 2018. It was theatrically released on 1 March 2019 in the United States, by Focus Features. The film grossed over $18 million worldwide and received mixed reviews from critics.

Frances McCullen, a young waitress living in New York City, finds a handbag on a subway train; the ID inside the bag reveals the owner to be a Greta Hideg. Frances visits Greta the next day to return the bag, and Greta invites her in for coffee. Greta tells Frances she is a widow from France, and her daughter Nicola is still there, studying in Paris. Frances and Greta become friends.

One night while having dinner at Greta’s, Frances finds a closet full of handbags identical to the one she found on the train. Attached to the bags are names and phone numbers, including Frances’ own. Disturbed by the discovery, Frances cuts ties with Greta, who then begins to stalk Frances, seeing herself as a replacement for Frances’ late mother. After Greta turns up at Frances’ work, Frances contacts the police and pursues a protection order, but is told the process will take months.

Frances meets a former lover of Nicola’s, and discovers that Greta is Hungarian and not French, and that her sadistic behavior led to her daughter’s suicide four years ago. Meanwhile, Greta has also taken up stalking Frances’ best friend and roommate, Erica. Greta shows up at the restaurant to cause a scene, insisting Frances’ mother had to die for them to meet. Greta suffers a nervous breakdown and is hospitalised.

Erica suggests Frances lie to Greta about leaving town to spend time with her father, and instead secretly hide in their apartment for a while. The following morning, Frances is drugged and kidnapped by Greta. After locking Frances in a wooden chest in a secret room at her house, Greta uses Frances’ cell phone to separately text her father, Chris, and Erica, telling each that Frances is with the other. When Frances is released from the chest, she finds clothing and IDs of other young women Greta had previously kidnapped, implying that she has killed all of them. Greta also kills the dog Frances had helped her to adopt.