I bought this DVD to see 'Dick Tracy meets Gruesome' because it stars Boris Karloff and didn't watch the other two films. Karloff plays 'Gruesome,' a career crim freshly released from prison, who obtains a temporarily paralysing gas to perpetrate robberies, with Dick Tracy in hot pursuit. Ralph Byrd is OK as the likeable eponymous hero, and Skelton Knaggs is his usually creepy self as Gruesome's co- conspirator 'X Ray', but Karloff totally eclipses everyone in a charismatic,menacing performance as the sinister and aptly named Gruesome. This is a minor Karloff film in a low budget B movie, but worth purchasing by Karloff completists, because it's highly entertaining and better than most of the B films he's acted in (like the 'Mr Wong' films or dross like 'The Ape').It's also cheaply priced so quite a snip in my opinion. It's also one of the few films made by Skelton Knaggs, the British actor memorable for his performances in 'House of Dracula', the Sherlock Holmes film 'Terror by night', and the classic 'Ghost Ship'. He's got to be the creepiest looking (and sounding) actor after Dwight Frye from the 'Frankenstein' films, and he sadly died not long after of cirrhosis, so the film qualifies as quite a rarity.