CSI: Crime Scene Investigation (2000)

S1E17 Face Lift

A corpse is discovered in a pottery shop, suggesting a robbery gone wrong. The fingerprints collected at the scene appear to correlate with a kidnapping case from two decades ago. Meanwhile, Sara and Warrick investigate another unsettling incident involving a woman who was incinerated in her house. Strangely, she was reduced to ash while the chair she occupied was the only thing charred, leaving the rest of the home untouched. Sara suspects they might be dealing with a case of spontaneous combustion.