SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk, or better, come back to this article later!
SPOILERS AHEAD
Vengeance Is Mine Plot Summary and Synopsis
Harry is a broken man, struggling to come to terms with the murder of his wife and daughter 5 years previously. When he discovers the whereabouts of the killers he awakens from his grief and, like an avenging angel, resolves to never stop until they are all dead.
Source: Wikipedia (CC BY-SA 3.0).