Described by some critics as an “intellectual ménage-à-trois”, A Dangerous Method is a period drama that hinges on the turbulent relationship between Carl Jung (Michael Fassbender) and Sigmund Freud (Viggo Mortensen). The friendship between the two is complicated further by Sabina Spielrein (Keira Knightley), a pioneer of psychoanalysis who began as one of Jung’s patients. In slow, restrained moves, a psychological game gets underway, exploring the human mind and behaviour and the battle between the rational and the instinctive.