An orphan ,Lydia, follows her best friend's not so good piece of advice:pretending to be a wealthy writer's natural child.There is some excuse:her grandmother passed away and she couldn't pay the rent anymore and continue her law studies ;besides ,every time she thinks she's got a job,the macho men want to abuse her.As an impostor,she's welcomed with open arms everywhere.Later on,when she becomes a lawyer,she will defend a young delinquent who committed the same fault as her:identity usurpation.