Athlete Marie (Eline Kuppens) suffers an strange injury while trying to qualify for the track finals. Unable to run, Marie distracts herself with a relationship with archery guild dean Bobby (Matthias Schoenaerts). She moves into Bobby's Left Bank apartment and discovers that the previous female tenant had disappeared mysteriously. Marie's mother feels bad vibes and believes that the fault line under the building has a malignant effect on the tenants. Going through a box the woman left behind, she discovers that the left bank in medieval times was an area where witches and plague victims were banished and that the apartment building was built over "The White Woman's Pit" a mysterious well where sacrifices took place. The missing woman's boyfriend Dirk (Tom De Wispelaere) becomes suspicious when they discover that the Left Banks oldest archery guild used to offer sacrifices for the festival of Samhain and that their November 1st feast is rapidly approaching.

Despite a tradition of mystery and horror literature, Belgium horror films are a rare thing (rarer in the U.S. apart from Harry Kumel's French-language intriguing MALPERTUIS and his masterful English-language DAUGHTERS OF DARKNESS). LEFT BANK has an interesting premise but a rather uninteresting execution. The critical blurb on the cover says "As important as LET THE RIGHT ONE IN... definitely one of the best horror films of the past 10 years" but it does nothing new with the derivative elements (a critical blurb on the back cover says "Think ROSEMARY'S BABY". Here we have, the mysterious fellow tenants, bad vibes, an apartment over a portal, a repeated striking resemblance of a character to people from the historical past, and a heroine who of course isn't worried or suspicious of her boyfriend's connection to the guild (although most audience members will be suspicious as soon as they hear the word "guild" long, long before we learn about its history) and the approaching traditional feast.