THE STORY Based on an episode in the life of its writer-director, Joanna Hogg, this drama follows a British film student (Honor Swinton Byrne) and her relationship with a boyfriend (Tom Burke) who may or may not work for the Foreign Office but is certainly a heroin addict.

A.O. SCOTT’S TAKE This is “one of my favorite movies of the year so far, but I almost want to keep it a secret. Partly because it’s the kind of film — we all have a collection of these, and of similar books and records, too — that feels like a private discovery, an experience you want to protect rather than talk about.”

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[Here is The New York Times’s list of the best movies on Netflix right now. ]