You get one shot Before he kills you.

Bloodmoon

Ken O'Hara is a "Mindhunter" - a serial killer specialist enlisted to find the mass murderer intent on killing the strongest fighters in New York City. Trying to catch this cunning and clever killer is the hardest assignment Ken has ever had. Now, the moon is rising again and he must use all of his resources to hunt down the murderer....or he may be the next to die.