Dead Ringers (1988)

In this film directed by David Cronenberg, Jeremy Irons delivers a masterful performance as identical twin gynecologists, Elliot and Beverly, whose professional success takes a dark and twisted turn. The film's unique premise explores the complexities of identity, obsession, and mental unraveling as the twins' disturbing relationships with their patients lead to a chilling descent into madness. The unsettling atmosphere and Irons' compelling dual role make this psychological thriller a must-see for those who appreciate thought-provoking and intense cinema.