The new play “The Hunt” is based on a 2012 Danish film, titled “Jagten” in its native language, which put forth a theory that seemed a little less radical at that time than now: that not all men accused of sexual assault are guilty.

In the Thomas Vinterberg movie, co-written by the director and Tobias Lindholm, and this stage production, adapted by David Farr and helmed by Rupert Goold, the accuser is not a woman but, even more disturbingly, a child. The protagonist, Lucas, is a well-liked teacher at an “infants school” — a term used across the pond, roughly equivalent to a preschool — when a student charges him with a sordid act.