High school freshman Shaun Ouillette vanishes the day after a snowstorm; an anonymous letter leads detectives into the frozen woods, where they make a discovery that will tear the small town apart.

After Christmas shopping, 18-year-old Linda Velzy vanishes into upstate New York's frozen landscape; the primary suspect refuses to talk to detectives, so Linda's father hatches a plan, but temperatures are dropping, and time is running out.

A pastor finds bartender Robbie Schmidt strangled in the snow shortly before Christmas; Robbie's family is shocked when suspicion falls on his closest friend.

Seventy-four-year-old widow Virginia Johannessen is shot dead in her home; then, another widow is murdered on the same street; as police unravel the truth, they discover they've made a chilling mistake.

Weeks after the Christmas disappearance of 22-year-old Dean Fawcett, detectives discover a headless body in the snow; a handwritten note points to a dangerous set of suspects, sending investigators on a cross-country manhunt to unravel the truth.

A family of four is murdered in their home on a cold January night; as fear grips the small town of Evansville, Ind., detectives launch a desperate manhunt for a deranged killer.