An astonishing physical performance from Ben Foster drives this thriller where the villain is not a serial killer but road infrastructure and careless rural driving practices. Ben Foster is a charming, creepy, unreadable quiet little man whose obsession drives away his hot wife (played by Cobie Smulders who manages to do enough with the very little character that the screenplay gives). Foster’s secret seems to be bringing a little Tim Robinson energy to the role in a way that makes the script pop while also tapping into the deep pathos of the character and further establishes I Think You Should Leave as the key text of our current sociocultural moment.