There are two teams - KIDS and NEIGHBORS. The team you are on determines your goals in the game:
KIDS use objects to figure out who among them can be entrusted with keys, then transfer possession to those trusted few and call for an Unlock Vote. If only kids use the keys, kids win!
NEIGHBORS work hard to deflect suspicion, support their co-conspirators, and get the majority of players to vote for them to unlock the door. If even a single key is used by a neighbor, the neighbors win!