0 By David Andreas Slasher/Serial June 9, 2011 – (1975) – Cops are on the trail of two separate killers who draw blood from their victims. The “Mary” angle shows more compassion, whereas the “giallo” area provides more dread. Never gels as a whole, but the overall mystery isn’t too bad. David Andreas / About Author More posts by David Andreas Leave a comment Cancel replyYou must be logged in to post a comment.