The movie in question, I think may have had a title referencing some sort of container, but I could be wrong.
It starts out with a group of criminals meeting a scientist out in the middle of nowhere to take possession of a mysterious package. The scientist warns them not to open it. They take the package back to their hideout, and start to bicker about what to do with it. To be clear, they're just supposed to be holding on to it for a while, until the scientist can reclaim it.
They eventually open it, and find a strange creature inside. They decide they should sell it for money, but the creature begins telepathically manipulating them and causing strife. They begin to fight amongst themselves, culminating in all but one of the criminals being killed. The one woman left, is then telepathically compelled to have sex with the strange creature. Weirdest sex scene, ever.
I'd really like to know the name of this movie, or at least some approximations of what the title might be, as I'd like to find out more about it. I should mention, I probably would've been around 10 or 11 years old when I saw it, making the year I saw it sometime in the mid 2000s. And I think the movie was relatively old, even then, as it was a VHS tape, and looked like it had been made in the 70s or 80s. Again, any help is appreciated.