In the opening scenes, a man's wooden leg is removed and revealed to be a machine gun, and a baddie has his fingers chopped off with a cigar cutter. Sam Raimi's Darkman, made after his Evil Dead films and before his Spiderman ones, is pulp comic fun.
Liam Neeson (!) with an awful American accent (!!!) plays the title character, is a scientist who is brutally beaten and left for dead by thugs who want his valuable real estate. Or something. His ordeal leaves him with super strength. Somehow. But it also results in him losing most of the skin on his body. This annoys him, because he knows his girlfriend ain't gonna want no lovin' from a deep-friend freak. Luckily, Neeson's field of study was in skin regeneration so he can build himself a new face-- multiple faces, in fact, which will allow him to score with the ladies again AND take his revenge.
Raimi's got an eye for exciting visuals, of course, so the film is fun to watch. You can tell it was made relatively cheaply and the story is ludicrous, but everyone involved knows this and so it's somewhat forgivable.
If you like laughing along with cheesy movies it's worth a rental. I think I actually bought it for $5 new a few years ago and it's probably worth that.