In the birthplace of The King, Elvis impersonator and janitor Kevin Curtis finds his world rocked after discovering a severed head in a hospital fridge.

As his marriage implodes, Kevin delves deeper into dark web conspiracies. Later, poison-laced letters lead the authorities straight to his doorstep.

A feud with a karate instructor spirals out of control, uncovering a revenge plot that casts the crime — and Kevin's involvement — in a new light.