A car accident survivor experiences visions of an unsolved crime from two months before.

Promethea discovers a small key inside victim Lea Vasseur's secret box.

Promethea meets the enigmatic William. Elise corners a suspect in the missing corpse case.

Elise risks confronting the suspect, in an attempt to jolt Promethea's memory.

Promethea realises that she has an uncanny link with each victim. Will hypnosis reveal it?

After Promethea finally discovers who she is, a call for help pushes her to the edge.