Spectrum

In "Spectrum," a gripping thriller from the author of the "Shepherd series," the unsolved massacre of over 300 squatters in South Africa sets off a chain of events when the alleged assassin holds hostages in a U.S. storage facility. FBI agent Dr. August Burke, despite his social anxieties, must collaborate with Special Agent Carter to uncover the mystery behind a secret lab and stop a ruthless enemy. Parallelly, Constable Isabel Price embarks on a vengeful mission to track down the killer, leading to a tense intersection of their paths in a high-stakes game of life and death.