"A suicide website lures its unsuspecting users into a trap set up by the vampire, Tatiana."

Jack: "Rather than use the plural users? why not focus on one user. A group creates less sympathy than an individual. How about ? A manic depressive (if that?s what he is) is lured into a suicide website, only to find it is a scam run by a vampire?.

Dave: "An interesting premise that did have me interested, however, I don't know who the main character is. Tatiana is the antagonist but I don't see where the story is, or at least who it is about. "

An interesting concept... would like to see a less obvious twist in the logline.

Example;
"A suicide website lures its unsuspecting users into a trap set up by the vampire, Tatiana, only to find that Tatiana has been the one set-up."

If I saw this in the video store, I would most likely rent it. It does sund like my cup of (bloody) tea.