Somebody disguises themselves as a member of some group to sneak among them. However, it turns out everyone else in the area is also in disguise. Primarily used in comedy. If they turn out to have been on the same side too, then it is Right Hand Versus Left Hand. Sometimes the result of a Gambit Pileup. Might also drive a character to demand: "Okay, will the real [X] please stand up?" - and then everybody stands up. Compare/contrast I Am Spartacus. Examples of Flock of Wolves include: