Oscar-nominated director Markus Imhoof (The Boat is Full) tackles the vexing issue of why bees, worldwide, are facing extinction. With the tenacity of a man out to solve a world-class mystery, he investigates this global phenomenon, from California to Switzerland, China and Australia. Exquisite macro-photography of the bees (reminiscent of Microcosmos) in flight and in their hives reveals a fascinating, complex world in crisis.

Writes Eric Kohn in Indiewire: "Imhoof captures the breeding of queen bees in minute detail, ventures to a laboratory to witness a bee brainscan, and discovers the dangerous prospects of a hive facing the infection of mites. In this latter case, the camera's magnifying power renders the infection in sci-fi terms, as if we've stumbled into a discarded scene from David Cronenberg's The Fly." This is a strange and strangely moving film that raises questions of species survival in cosmic as well as apiary terms.