Death Sentence movie plot

Nick Hume lives in Boston, has a decent job and a happy family. The beauty of life and Nick's kind and gentle personality complement each other perfectly. However, a sudden change changed everything. On the way home with his son one night, a group of supermarket robbers killed Nick's son. In pain and sadness, Nick began his journey to justice for his son’s death. When the judicial department released the murder suspect to court, all the disappointed, helpless, and provocative expressions of the murderer instantly ignited the bloody rage in Nick’s soul. Decided not to resort to the law, nor to rely on anyone else, to seek justice for his dead son alone. Although he has been pampered for many years, Nick's excellent motor nerves and strong body allowed him to successfully send the murderer released from the court to the west. And this person is the younger brother of gangster Billy Daly, so the flame of vengeance is also ignited in this side, and Billy vowed to bury Nick's family by himself. And Nick, who has transformed from a silent lamb to an angry lion, certainly won't be caught with his own hands. In order to avenge his son and protect his wife and family, Nick began his life and death contest with the black forces   .