Halloween Night (2006)

A group of friends throwing a Halloween party decide to pull what they consider the greatest prank ever on their unsuspecting party guests.  Unfortunately it is actually an incredibly stupid prank in which another friend, who is unknown to everyone else, pretends to crash the party.  When asked to leave, he beats up the host, pulls a gun and kidnaps one of them.  Then he takes off with his hostage as fake police chase them.

Why this seems like a good prank is beyond me.  There's so many things that can go wrong: someone at the party has a weapon; someone knows karate; someone grabs a steak knife,  etc. Or someone calls the real police, which is what happens.

Interwoven into the plot is an escaped lunatic whose mother was murdered in the very house in which they are having the party.  Think that will factor into this at all?  You bet your sweet bippy it will!

The movie is completely disjointed.  There are scenes that go nowhere, plot points that make no sense - such as putting on your costume in a gas station restroom when you're one of the party planners who is going to be there hours earlier than any of the guests -  and an absolutely ridiculous ending.