When 850 000 bitcoins -half a billion dollars- disappear from Mt. Gox in Tokyo, its unconventional CEO, Mark Karpelès, is arrested. After a year, he's finally released for lack of evidence. Mark Karpelès is now free and breaks its silence.
10 years after disappearing, Matt mysteriously returns home. Suspicions grow when Matt's brother is injured in a car accident similar to the one that recently killed their father. Is Matt really the missing son or a deceitful stranger?