This movie has bugged me for years, I saw it around 14 years ago. I think it was a low budget sci-fi movie and the plot involved a beautiful female Alien who teamed up with a cop to track down a evil monstrous Alien. I think the "evil" Alien could change form. The female Alien and the cop developed a romance...I think. I remember in one scene the Cop and the female Alien were walking down a flight of stairs and she read his mind and discovered he liked her. That is about all I can remember. I know the details are vague, but I was only a kid when I saw it.