Hour of the Wolf

• Bergman built it from a corpse. The story came from 'The Cannibals' (also called 'The Maneaters'), a screenplay he finished in 1964, then shelved when pneumonia hospitalized him in 1965. From that same hospital bed he wrote Persona and shot it first, then salvaged the leftovers into this smaller, meaner picture. It's the one outright horror film in his whole career.
• He shot it on his own island. Principal photography ran across Hovs Hallar, the Råsunda studios in Stockholm, and Fårö, the windswept Baltic rock where Bergman actually lived. The painter Johan Borg retreating to a desolate island to lose his mind is the director filming his own address.
• The seashore murder is hacked into more than 30 shots. Sven Nykvist deliberately overexposed the sequence where a boy on the rocks provokes Johan until he beats him to death and dumps the body in the sea. The quick cutting was meant to make it read as a fever, not a memory. Whether it ever happened is left open on purpose.
• The cast is the Bergman repertory at full strength: Max von Sydow as Johan, Liv Ullmann as Alma, Erland Josephson as the leering Baron von Merkens, Ingrid Thulin as the former lover Veronica Vogler, and Gertrud Fridh as the baroness Corinne von Merkens.
• The whole thing is framed as a found document: Alma recounts her husband's disappearance to an unseen interviewer and reads his hidden diary, and his journal entries about the castle demons and Veronica become the movie you're watching. The audience and the abandoned wife are decoding the same dead man's handwriting.
• Sweden hated it on release. Critics found it cold and impenetrable in 1968, complaining you couldn't identify with it. It aged into a canon entry, landing at number 44 in the 2012 Sight & Sound directors' poll of the greatest films ever made.

Johan is Bergman's confession and the demons are his self-disgust given bodies. The artist who flees to Fårö, can't sleep, and despises the rich patrons who feast on him is the director's own alter ego. The castle ghouls who walk on walls and shed their skin aren't supernatural visitors so much as every part of himself an artist can't stand, dressed up in aristocrat clothes and invited to dinner so they can humiliate him.

The boy on the rocks is the murder Johan can't admit. Read literally it's a child striking lewd poses until Johan clubs him into the sea; read as the diary of a haunted man, it's a buried, panicked desire he kills rather than name. Bergman refuses to confirm the scene is real, which is the point: the most damning page in the journal is the one the writer himself can't decide actually happened.

Alma catches the madness like a disease, which makes the film about how loving a sick artist infects you. She starts as the grounded witness reading his pages, then begins seeing the same demons he does. The horror isn't only what's in Johan's head, it's that proximity to it rewires hers, so by the end you can't tell whose nightmare you've been trapped inside.

A painter and his pregnant wife hole up on a barren island, and the quiet starts eating him alive. Johan can't sleep through the dead hours before dawn, so he fills a diary with the aristocrats who keep inviting him to their castle: collectors, a former lover, things that climb walls and peel off their own faces. Alma reads every word, then gets dragged into the same waking nightmare. Bergman never tells you which horrors are real and which crawled out of one man's cracking skull.