Aka: A Hole in the Desert, MoniKa, MoniKa: A Wrong Way To Die
Reagan Tyler receives a phone-call from his friend JJ, inviting him to meet at a motel in Las Vegas, where JJ has met a girl, and promises to hook Reagan up with the girls friend, who is staying in the room next to their own.
For lack of anything better to do, Reagan flies to Vegas, only to find JJ and his companion not answering their room door, he does however meet the promised friend, Monika ("with a K") who turns out to be the woman of his dreams. They go out, have a great time, and spend the night together.
The following morning, Ragan calls on JJ, and is told why he and his lady friend were unavailable the day before. It turns out that yesterday, before Ragan arrived in town, Monika was murdered...Not a earning a "recommended" but only the 2nd movie so far this year to go in my "keep" pile.