One more, an alien hunts down humans with living throwing stars

[neilksr]

Saw this in the late 70's early 80's, this alien throws these things and they attach to people with these spikes that come out from each point and they have teeth underneath and they suck blood or something, the alien hangs his victims in some sort of shed I think.

[Andrew]

This is "Without Warning" (1980). 

The IMDb entry:

http://www.imdb.com/title/tt0081764/

[neilksr]

Thank you