Ingmar Bergman's formally daring psychological drama follows Alma (Bibi Andersson), a young nurse assigned to care for Elisabet Vogler (Liv Ullmann), a celebrated actress who has inexplicably stopped speaking mid-performance and refuses to break her silence. As the two women retreat to an isolated seaside cottage, Alma's one-sided confessions gradually blur the boundary between their identities until the film itself seems to fracture, most famously in a shot that merges half of each woman's face into one. Bergman's willingness to abandon conventional narrative logic in favor of pure psychological and visual expression made the film a landmark of art cinema. Widely regarded as one of the greatest films ever made, its influence on subsequent explorations of identity, doubling, and cinematic form remains incalculable.