An early morning in October, 15 people are taken hostage from a subway train. This puts a huge hostage crisis in motion, and it changes Denmark forever.

Independent, outspoken and adored by her students, private school teacher Rita fares less well with adults.

Borgman is the central character of this dark, malevolent fable. Is he a dream or a demon, a twisted allegory or an all-too-real embodiment of our fears? Borgman is a…