Signs of a Psychopath (2020)

S1E7 I Am The Devil

The roommate of a missing woman from Colorado insists she's willing to do whatever it takes to aid in the search, yet investigators worry they might be dealing with a rare female psychopath. Meanwhile, a suspect's furious outbursts raise questions about their authenticity, leaving investigators to ponder whether they are genuine emotions or merely a façade crafted by a skilled manipulator.