This actually was nicely covered in a Korean movie I forgot the title: a guy was a superpro with knives, he can do with them everythig: throw in a target from big distance with great success, he killed a tiger with just a small knife after the animal attacted him, he literally could do all sorts of things with a knife ... Then one day a bad guy with a gun appeared and just shot the knife master, shot him dead. Thats all.
Well that's depressing.
Is it a full feature length film, or just some YouTube video?