His film 'Dead Ringers' is a masterpiece exploring the psychological fusion and destructive codependency between identical twin gynecologists.

His work frequently examines twisted familial bonds and interdependence, particularly in 'The Killing of a Sacred Deer' and 'Poor Things,' where characters exist in claustrophobic psychological entanglement.

Her films like 'The Invitation' and 'Destroyer' probe intense emotional bonds and the ways characters become psychologically enmeshed in relationships that blur boundaries between love and obsession.