Need help finding a old horror film?

Okay the film is about a oldish man who works in a factory he looks slimier to antony Hopkins, Some thing happens to him and he start's killing people in the machines he works around its gory and i seen it as a kid and now i want to refind it if any of you know let me know please :) . Cant remember what the factory was but i believe it was a sewing machine factory or laundry. i remember the cops try go snooping about and he try to kill them and they escape and i think they kill him not sure . please let me know :D