Subterfuge

Subterfuge is a silent melodrama about glasses as disguise. 
Two warring gangsters, the evil and ruthless Z and the wily and conniving Nic the Greek, vie for the most powerful weapon is existence, a pair of glasses that instantly changes the wearer's identity.
Super spy/schoolteacher Kinki Valesco is the key. She has a clandestine relationship with both mob leaders and is used as a go between by Nic in a deal that promises to make him very rich. Nic trusts Kinki, but once she puts on the glasses she becomes Victoria Black, a deadly assassin who has no loyalty to either party.
With the fate of future crime resting in her hands and Nic becoming increasingly suspicious, Kinki/Victoria makes a move, but whose side is she on?