If Schrödinger’s cat was murdered, how would anyone know, let alone discover who committed the crime? That’s the level of conundrum that professor Sohei Saikawa and math prodigy genius Moe Nishinosono discover when they arrive at an ultra-secure laboratory and are confronted with the ultimate locked-room murder mystery: 15 years earlier, brilliant programmer Shiki Magata sealed herself in her lab, communicating only by video, until her mutilated body was suddenly transported out of her lab despite no one else ever entering. Now the duo must unravel one of the most baffling mysteries ever conceived…