Still In The Fire (2018)

A white-bread loner with an anger problem leads a caustic, solitary existence, until he opens a package that has been mis-delivered to his P.O. box. Its contents tear open old wounds, sending him down a path of vigilantism against a man he's never met - a pedophile who's already evaded justice once. But then friendship appears in the most unlikely of forms. Her name is Tilly, and she's the daughter of our man's intended victim.