After escaping her violent foster home when she was a teenager, Jo has managed to live on her own ever since. By chance, she gets a job as a classic car mechanic in an old French mansion, but because the owner of the mansion has a policy of not hiring women, Jo has to pretend to be a boy! Normally, the owner rarely comes home, but after being injured on the job, he’s spending all his time there. What will happen if Jo’s true identity is discovered?