There’s nothing quite like a documentary crafted as a mystery. This morning, Netflix debuted the trailer for Tell Me Who I Am. It looks to be the next riveting, buzzed-about doc that gets people talking, insisting you see it before it’s spoiled. The film is directed by Ed Perkins, who was Oscar-nominated this year for his 2018 documentary short, Black Sheep. This project, his first documentary feature, looks like the stuff Hollywood films are made of. A guy has an accident, falling into a coma. He wakes up, and he can’t recall who he is, …