Instinct (1999) is a Drama, Thriller film that follows in a prison for the criminally insane, deranged anthropologist Ethan Powell is set to be examined by a bright young psychiatrist, Theo Caulder. Driven by ambition and a hunger for the truth, Caulder will eventually risk everything—even put his very life on the line—in a harrowing attempt to understand the bizarre actions of this madman. Currently, you can watch Instinct on Amazon Prime Video, Amazon Prime Video with Ads, Apple TV Store. Streaming availability may vary by country and platform over time. It has a user rating of 6.5 out of 10 from 649 votes. Fans of drama movies may also want to explore similar titles below.