Tilly's melancholy is of an exquisite quality. She turns her melancholy into a sexy thing, and every stranger she meets falls in love with her. One day, inexplicably, Tilly becomes happy, and wreaks havoc on the lives of her paramours. Frances, Tilly's hairdresser, becomes so melancholy that she turns into an almond. It is up to Tilly to get her back.