Feint

A sardonic Private Investigator, Billy, enlists the help of his precocious niece, Donna, to solve the murder of her parents. In order to do that however, the aggressive 15-year-old must prove she is savvy enough to win a fight. After she fails her self-defense test, the unlikely duo is ambushed by a hit man who's trying to tie up loose ends. In a surprising show of guile, she subdues the intruder and saves her uncle's life.