Mantis (2019)

Molly finds the perfect roommate in Helle Pii, and Helle, along with her pet mantis, scores a place to live. The apartment isn't ideal – it lacks privacy and has thin walls – but initially, it works for both women. However, their comfortable arrangement quickly spirals into a terrifying ordeal when Helle overhears something deeply disturbing through the wall, leaving them trapped with no escape.