The Cell 2 (2009) on Netflix

Plot summary

A man who calls himself The Cusp stops his victims' hearts and then restores them, killing them repeatedly until they beg for death. Maya Casteneda was his first victim and lived through it; after a year-long coma she woke with psychic abilities, and she has sworn revenge. Now The Cusp has struck again, and the FBI brings Maya in to help catch him. She works out that the only way to locate him is to go inside his mind, without preparation, something she has never attempted. Should she die there, she would die in the real world too.