His films like 'Fight Club' and 'The Game' obsessively explore fractured identities and hidden selves living parallel existences.

His masterpiece 'The Lives of Others' dissects how surveillance forces characters to maintain elaborate double lives and secret identities.

His psychological thrillers, especially 'The Handmaiden' and 'Oldboy,' masterfully weave intricate narratives of deception where characters lead concealed parallel lives.