A couple is running down the stairs of Montmartre Sophies moving that way because she really wants to pee her boyfriend is teasing her They go into a toy shop to buy a present She grabs a baby doll he makes fun of her reminding her that Gus is a boy Sophie is now annoyed and they start arguing about the differences between girls and boys the gender theory Up to what point will they argue We end up in the middle of their debate full of dishonesty and wit