The Ones Below is an intimately disturbing nightmare of the upper middle classes, with tinges of melodrama and staginess, entirely appropriate for its air of suppressed psychosis.

The economical, precisely calibrated screenplay is nicely filled with enough simmering conflicts, character flaws and guilty resentments to keep you intrigued by what lies beneath the surface of these comfortable, middle-class lives

As a storyteller, Farr is bold enough to keep us guessing until the film’s final moments, but a late need to explain lets the film down a little.

For all its limited ambitions, The Ones Below serves its purpose as a solid calling card for Farr's filmmaking future, a gripping exercise in domestic suspense that sets out its stall on the shoulders of giants.

Even the film's lapses inform it with a free-associative sense of portent, evoking the stupid things we inexplicably do in our most personal nightmares.