Coke Ennyday, the scientific detective, divides his own time in periods for "Sleep", "Eat", "Dope" and "Drink". In fact he's used to overcome every situation with drugs: consuming it to increase his energies or injecting it in his opponents to KO them. To help the police he discovers a contraband of opium (which he eagerly tastes) transported with "Leaping Fishes", and the blackmail of a mysterious man who wants to marry the "fish blower" girl. Will Coke be able to free the girl ?

In a strange grotto deep in the bowels of the earth a coffin uprights itself, dances, then opens, and out steps a demonic magician with skeletal face, horns, and cape. He wraps two women (who appear to be in a trance) in fabric, levitates them, and causes them to burst into flames and disappear. As he gathers their ashes in a pitcher a Good Spirit [a young woman who resembles Peter Pan] appears, shakes her head No, and reveals the "souls" of the two women in a secret compartment deeper within the cave. The Good Spirit vanishes in a puff of smoke. The magician then produces 3 glass bottles on pillars, takes them downstage close to the camera, and reveals 3 tiny women in them; one woman beats a tambourine while the other two sway. The magician pours ashes (?) into the bottles, but the Good Spirit reappears and makes these trapped figures disappear in a flash, angering the magician...

Dr. Henry Jekyll experiments with scientific means of revealing the hidden, dark side of man and releases a murderer from within himself.

Buster is playing golf with Sybil when he gets knocked out. An escaped prisoner changes clothes with him. Buster goes to prison and learns that he is to be hanged. He changes clothes with a guard just as prisoner Roberts attacks all the guards.