I am trying to find out a movie i saw only the last 5 minutes. it was on HBO and it was the late 90s to VERY early 2000s. not more than 2002. The final scene was 3 teens/young adults trying to escape a house that was collapsing or burning down. one girl was grabbed and started to change into something akin to the creature from the black lagoon. the other 2 (the couple of the story i am guessing) managed to escape and see the house collapse behind them.
i know it is not alot to go on but any help would be appreciated. i have been looking for clues on the possible movie for YEARS