Knife in the Water

1h 34m · 1962 · Directed by Roman Polanski · 3.8 / 5 on Letterboxd

Knife in the Water (1962) runs 1h 34m, directed by Roman Polanski. It is one of 3,647 films in the 100 Minute Movies catalog — every one rated 3.0 or higher by Letterboxd members and short enough to finish in an evening.

On their way to an afternoon on the lake, husband and wife Andrzej and Krystyna nearly run over a young hitchhiker. Inviting the young man onto the boat with them, Andrzej begins to subtly torment him; the hitchhiker responds by making overtures toward Krystyna. When the hitchhiker is accidentally knocked overboard, the husband's panic results in unexpected consequences.

Genres: Drama, Thriller

Where to watch: HBO Max (US, checked 9 July 2026)