The movie starts out with a chalk outline on a sidewalk where someone had fallen off a roof on fire or some other means. The main character was a woman who became close to a teenage girl she was either the case worker on or the cop investigating the girl’s case. Or, she might have been the girl’s relative. The main character meets another woman who has abilities/powers that she gained from sacrificing the person who was dead at the start of the movie. She teaches the main character to explore her abilities. I think the main character had to drink something to get these powers. One particular scene I remember is that the main character came home to find her apartment crawling with giant bugs of all shapes and sizes. I think they had something to do with the source of her power. In the end, the guru woman told the main character she had to sacrifice the girl or the fire that consumed the person in the beginning would kill her. The main character’s fingers started to entwine and caught fire when she refused to kill the girl. She then plunged her burning fingers into the stomach of the guru and sacrificed her instead of the girl.
That’s all I can remember