Saw III (Saw 3) (2006)
jeff-tape3
Jigsaw:"Jeff, when the judge presiding over your case sentenced your boy's murderer so lightly, your soul never recovered. Now, you have the power to sentence his soul straight to hell. Or, you could forgive. The key that will free him is hidden inside your son's possessions, possessions you have clung to for far too long. Now if you flip the switch on the incinerator underneath you, a fire will cleanse you of this obsession and destroy them all, leaving only the key remaining. It is also the key that will bring you closer to the man accountable for taking your child. He doesn't have much time, Jeff. Let the game begin."