Upholding genre tropes whilst subverting them, Son is an unsettling fever-dream drenched in unspeakable acts that leave viewers on edge until the end.

Kavanagh and Matichak do a remarkable job of capturing an amped-up version of everyday parental paranoia. This is ultimately a movie about a woman who loves her child so intensely that she becomes irrational — and dangerous.

Son never quite binds its tricky, episodic story into a persuasive or gripping whole.