Undertone is the terrifying feature film debut from Canadian director Ian Tuason, which promises to be the “scariest movie you will ever hear”.

Evy (Nina Kiri) is a podcast host caring for her dying mother (Michèle Duquet) at home. Told only from Evy’s perspective, the film moves from initially creepy to utterly horrifying over a tense, tight 93-minute running time.

Evy’s Undertone podcast explores supernatural phenomena. Her co-host Justin (Adam DiMarco) is in another time zone, so they record online in the middle of the night, Evy’s time. This veers close to the “witching hour”, but as Evy is the podcast’s resident sceptic – the voice of reason opposing Justin’s belief in the paranormal – she is unbothered. Until she’s not.

For this week’s instalment, Evy and Justin react to a series of mysterious recordings involving a couple: Jessa (Keana Lyn Bastidas), who has begun talking in her sleep, and her husband Mike........

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