On the evening of September 16, 1968, Carol Jenkins was doing her job. She was 21 years old, ambitious, stylish, and hopeful selling encyclopedias door-to-door in Martinsville, Indiana. She wore a beautiful yellow scarf. By 9:00 p.m., Carol was lying on a sidewalk, dying from a single stab wound to the heart delivered with a screwdriver.

Her case went cold for more than 30 years until an anonymous letter, a deathbed confession, and the memory of a child finally revealed the truth.