Memoir of a Murderer (2017)

Memoir of a Murderer is a thriller with a wickedly original hook: it turns a fading mind into the most dangerous crime scene of all, where every clue might be real, imagined, or deliberately buried. Sul Kyung-gu gives a gripping, lived-in performance as a former killer fighting Alzheimer’s with scribbled notes and raw instinct, while Kim Nam-gil brings a cool, unsettling charm that keeps every conversation humming with threat. The film’s tension doesn’t come from cheap shocks so much as from the creeping dread of not knowing what to trust, and it stays taut by constantly shifting the ground under your feet without losing its emotional stakes. If you’re up for a dark, twisty ride with moderate violence and an intentionally slippery sense of reality, it’s an engrossing watch that rewards your attention; if you prefer straightforward mysteries, its haze of uncertainty may feel maddening by design.

Memoir of a Murderer is clearly aiming for a tense, brain-bending cat-and-mouse thriller where Alzheimer’s turns the narrator into both the hero and the biggest obstacle, and that’s a genuinely strong hook. Sul Kyung-gu sells the desperation and guilt beautifully, and when the film focuses on his slipping grip on reality, it’s eerie and compelling. The problem is it leans so hard into twists and blurred memories that it can start to feel convoluted rather than clever, with pacing that drags and reversals that risk leaving you more tired than thrilled. If you enjoy unreliable-narrator puzzles and don’t mind feeling unsteady and occasionally confused, it’s worth a look; if you want a clean, tightly executed mystery with clear payoffs, this one may test your patience.