It may not have aged particularly well, but Martin is a pretty solid little movie all these years later. What I found particularly interesting watching it again was that Martin is a shockingly sympathetic character for a guy who drugs and murders women. It is said outright that he is an "imbecile", which here means someone with a learning or developmental disability, and that comes through in his performance from start to finish. He comes across as a young man being abused by his cousin, and a housewife, and society, what he needs is psychiatric help - and that is... not what he gets.
That said, of course, he's also a vampire maybe so, lets call it conflicted or complicated. Either way, Martin is a pretty interesting little movie by a guy best known for zombie movies, so it's an easy one to miss - and that's kind of a shame really.
Check it out.