Chan's testimony results in a death sentence for convicted murderer Steve McBirney (Marc Lawrence).

Chan is lured to the wax museum on the pretext of sparring over an old case with Dr. Otto Von Brom (Michael Visaroff) on a radio broadcast arranged by Cream.

When the principals gather around a table to reenact a scene from the Rocke case for the broadcast, Cream makes sure Chan is in the seat wired for an electrocution.

Chan finds a small puncture wound in the dead man's neck and a bamboo blowgun dart.

Dagan kills McBirney and makes an attempt on Chan's life, before the detective finally unmasks and captures him.