Technically, I think a PT played from hand goes into the Chain Zone first.
QUOTE
213.6 Chain Zone
213.6a The chain zone, or ?the chain? for short, represents the area of the game where players place character or equipment cards being recruited, plot twist cards being played from the hand, and/or effects, as instructed by the game rules. All players share the chain zone.
QUOTE
505.1a The player announces the intended effect, reveals its source if that source is not currently revealed, and puts the effect on the chain. Certain effects may have a physical card representing them. If an effect has a physical card representing it, the player puts the card on the chain. If it does not have a physical card representing it, the source of the effect remains revealed while the effect is being played.
Slowmail quoted the relevant rule for the initial question, though. No more explanation is needed than that ... although Matt'a grenade analogy was awesome.