I'm not sure which title I like more but this film does indeed have a certain special charm to it. No, it is not outstanding or anything superlative like that, but it is rather enjoyable to watch as a crook/killer gets out of prison to wreak havoc and revenge on those responsible for putting him there in the first place. Helmut Berger is the best thing about this film as he plays a violent, sadistic psychopath with the best of them. He has no heart whatsoever and is quite something to see. His scenes in the abandoned warehouse and with newly acquired "moll" the beautiful Marisa Mell particularly stand out. Muscle-bound Richard Harrison, who you might remember from some older sword and sandal movies, plays the cop out to protect himself and his family. Like another reviewer noted, the script and plot have some obvious problems, but the pace and delivery more than offset those inadequacies. If you want some good, old-fashioned Italiam crime atmosphere then Mad Dog or Beast with a Gun is for you.