Gang of Four (1989)

Anna, Joyce, Claude, and Cécile are four young actresses sharing a Paris apartment while attending intense acting workshops led by their demanding teacher Constance. As they rehearse scenes and navigate the tensions of living together, their personal lives begin to grow complicated when Joyce becomes involved with a mysterious older man whose presence slowly pulls the others into a web of secrets and suspicions, blurring the boundary between the roles they perform and the lives they're actually living.