In Daniel Goldhaber and Isa Mazzei's paranoid horror thriller "Cam," an erotic webcam performer finds her followers stolen by a doppelganger who hijacks her channel, pushes the sexual envelope further, and otherwise seems determined to destroy her life. Call it identity theft of a possibly supernatural kind.
Cam
Alice, an ambitious camgirl, wakes up one day to discover she's been replaced on her show with an exact replica of herself.