The intensity of new love can often make you blind to the trouble signs, and that’s where things kick off in “Berlin Syndrome,” the new film from the always fascinating filmmaker Cate Shortland (“Somersault,” “Lore“).

Based on the book by Melanie Joosten, and starring Teresa Palmer and Max Riemelt, the story follows a young woman who travels to Berlin and falls in love, only to discover the relationship has taken on a sinister edge. We caught the film at Sundance and called it “an unbearably intense, slow burn thriller,” so it’s definitely one to keep on your radar. Here’s the synopsis:

Australian tourist Clare (Teresa Palmer) travels to Berlin to photograph East German architecture and meets Andi (Max Riemelt), a handsome but brooding schoolteacher. After a brief erotic fling, Clare tries to leave, but Andi isn’t ready to let go. She soon finds herself held prisoner in his locked apartment, cut off from the outside world. As her ordeal unfolds, Clare cycles between reasoning with her captor, surrendering to his obsessions, and plotting her escape.

“Berlin Syndrome” doesn’t have a U.S. release date yet, but it will be released by Vertical Entertainment in theaters, with Netflix landing the streaming rights. [Cine Maldito]