Inside Utah State Prison, surveillance cameras record the stabbing death of inmate Lonnie Blackmon, killed by fellow inmate Troy Kell, a white supremacist already serving time for murder, with the help of accomplice Eric Daniels. The film uses that footage, rare in that it captures a killing as it happens rather than reconstructing one after the fact, as the spine of a broader account of how prison violence works: the racial gangs that organize protection and retaliation, the codes that make an attack look inevitable to everyone except the man who dies, and the institutional failures that let it happen on camera without intervention. Corrections officials and investigators lay out how the killing was planned and carried out, and how Kell's status as a convicted murderer already inside the system shaped what he was willing to do next. The result is less a whodunit than a case study in how a prison's internal order produces bodies, with Blackmon's death as the evidence.