ontainment is a near-future surveillance novella set over one locked-room afternoon in a “Behavioural Containment Suite” run by Halcyon Public Safety.

In a busy northern shopping centre, a scuffle breaks out near the escalators. Twenty-something content creator Amina Khan is already filming for a planned paid livestream; Mark Houghton, an ex-army mall security guard, barrels through the crowd to intervene; Leo Hart, a university lecturer in ethics and “public order technology”, tries to calm people; and Deborah “Debs” Collins, a middle-aged shopper with an elderly dog at home, panics and screams for security.

Instead of being evacuated, all four are quietly diverted by blue-light guidance strips and soothing announcements into a white, glass-fronted “Calm Room”. The door seals. Their phones lose signal. A countdown appears on the wall: 120:00.

A disembodied, corporate voice explains they are not under arrest but in “Administrative Containment” for a 120-minute Behavioural Review. They are “participants”, not detainees. There is no rights script, no solicitor, and no way to leave until the system ends the session.