In a town where no one locks doors, someone chooses the slowest kind of murder. Thallium, tasteless, odorless, deadly, seeps into a family’s life through sealed soda caps. Investigators can’t break a genius without proof, so they plant a secret identity inside Mensa… and step into a killer’s game.
Subtitles: English
Season 1
S01:E01 - The Only Witness
A child’s instinct becomes the investigation no one else will lead. Collier knows his mother wouldn’t leave, and his father’s rage says otherwise. As police hesitate, clues mount, an affair, a rushed move, fresh concrete, until the boy must face his own father in court.
S01:E02 - The Hostage
A stalker watches for a year, then moves in with guns, duct tape, and a cruel ultimatum. Michelle is forced to rob a Bank of America branch while her child is held hostage. One business card, one familiar voice, and one desperate decision turn the tables, and ignite a manhunt.
S01:E03 - 27 Years Later
A peaceful town becomes a crime scene when a masked man forces three boys into a ditch and takes only one. As the search explodes nationwide, a separate kidnapping nearby reveals chilling similarities. Years pass with no answers, until a survivor and a relentless researcher connect forgotten cases and trigger the breakthrough investigators missed.
S01:E04 - Soda Drop
In a town where no one locks doors, someone chooses the slowest kind of murder. Thallium, tasteless, odorless, deadly, seeps into a family’s life through sealed soda caps. Investigators can’t break a genius without proof, so they plant a secret identity inside Mensa… and step into a killer’s game.
S01:E05 - The Audition Trap
From promise to predator: Inside the Kristi Johnson investigation, fake Bond auditions, a serial manipulator, and the brave survivors whose testimony built a case without DNA. One episode, a complete story.
S01:E06 - 13 Years to Truth
The case police wouldn’t open, until a sister did. Follow Shelly’s decade-long fight: social media sleuthing, a wiretap confession, a grave beneath a rock pile, and a courtroom deal that still haunts the family.
S01:E07 - Vanishing Act
A mom vanishes in 1980. Decades later, her daughter LaLana opens a sealed case file and a diary that hints at danger at home. A skull in a field, DNA, and a recorded call peel back lies, leading to a chilling confession and a life sentence.
S01:E08 - Outsmarting a Killer
When 19-year-old Lea vanishes, her brother Maxx plays along with the “concerned friend,” luring him to a gazebo and secretly recording a confession. With shifting stories, bleach receipts, and a landfill search, a cold charade collapses into a 48-year sentence.
S01:E09 - A Disturbing Secret
From “missing kids” headlines to a courtroom massacre, this episode tracks a relentless campaign: forged loans, fake sites, stalking, ending with historic convictions and a legacy of four daughters who carry their mother’s spirit.
S01:E10 - Cherry Hill Killer
A teen sits on her porch after a night of terror. Years earlier, her neighbor vanished from a pristine 7th-floor apartment. “Crazy Eddie,” a missing therapist, an ATM receipt, and a survivor who negotiates her way out. All culminating in a confession.
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