An old hitman named “PAY UZI”-The eagle of Chantaburi who just was set free from a prison after spending there for twenty years. From being an A-listed most wanted hitman, PAY becomes like an old dog, his good old day has gone by. PAY got surprised by ex- wife telling him that he has one daughter with her. PAY secretly sees his daughter name “DOW” and found that she is a cop now. 

Unfortunately, he unintentionally killed the man who his daughter always calls as father since she was a child. That causes she hunts down him like a murderer.
Meanwhile, Pay has to survive from a politician who wants to get him out of his way by sending killers to kill him. 

To turn back into hitman’s path again or quit it and tell the truth to his daughter, which one is the best choice for an old hitman like him will decide to do?