Killer on the Air review – radio call-in hostage thriller puts moral dilemma to tough-love show host

An aggrieved caller puts the host of Sarah Cares to the test, examining the limits of her ideas by threatening to kill her husband’s lover

If the initial phone call from Scream lasted an entire film, the result would be something like this halfway-decent B-movie thriller. Jessica Morris stars as the presenter of Sarah Cares, a call-in radio show/podcast in which she solves listeners’ emotional dilemmas, often in tough-love, no-nonsense fashion. On the verge of signing a big-time New York contract, her week goes awry when her studio falls victim to a bomb scare. Then on the following day her phone lines are blockaded by Edward, an aggrieved and apparently abusive husband; Sarah had previously told his wife to ditch him.

Edward says that all he wants is moral consistency. Sarah, the supposed font of all wisdom, is living in a sham marriage and he has the proof locked up in his shed: her husband’s new lover Alice (Carly Diamond Stone). Unless Sarah wants Alice’s death on her conscience, she has to abide by two rules: no cops, and complete honesty when Edward asks a question. After the insipid setup involving Sarah’s radio colleagues, and then the hypocrisies of her home life with husband David (Adam Huss) and daughter Maya (Aliza Kate Barlow), Killer on the Air becomes increasingly compelling the more minimalist it gets; a duel between the unravelling DJ and the malevolent green waveform on her screen.