In November 2004, Bethlehem, New York couple Peter and Joan Porco were brutally attacked in their bed with an ax. Peter died at the scene. Joan survived and, although initially unable to speak because of her wounds, she nodded “yes” when a detective on the scene asked her if her son Christopher was their attacker. Afterwards, when she had recovered from the attack, Joan said she doesn’t recall that nod and that Christopher is innocent. 48 HOURS follows the police investigation into the case, leading to Christopher Porco’s trial and conviction.