Review: Courtroom drama 'Monster' never finds its momentum Kelvin Harrison, Jr. leads Netflix movie that also stars Jennifer Hudson, John David Washington and A$AP Rocky Adam Graham View Comments In "Monster," the talented Kelvin Harrison Jr. ("Luce," "Waves") plays a young man on trial for murder. Did he do it? No. But was he a part of it? Maybe. The matter of that "maybe" and what it means hangs over the film, but it's not enough to hang the film on. "Monster" has an unclear message, a foggy narrative and a dramatic structure that continually works against its better impulses.