transportation of $10 million from a bank. To prevent the master thief Diabolik from stealing the money, he creates a diversion whereby a truck from the bank transports wastepaper, while a team of himself and disguised officers take the money in a Rolls-Royce. The plan is still foiled by Diabolik, who escapes with the money and his lover Eva Kant to their underground hideout, where they passionately make love on top of their loot. Diabolik and Eva attend a press conference held by the Minister of the Interior, who reinstates the death penalty to dissuade criminals such as themselves; they disrupt the conference by releasing exhilarating gas into the crowd. Unable to locate Diabolik, Ginko and his fellow officers are granted emergency privileges that allow them to crackdown on the activities of gangster Ralph Valmont, who they hope will aid in capturing him. Realizing their plan after a teen discotheque he operates is raided due to it being a front for his drug trafficking operations, Valmont makes a deal with Ginko. While watching a news report, Diabolik decides to steal the famous Aksand emerald necklace from Saint Just Castle for Eva's birthday. After learning of Eva's features from a prostitute who spotted her scouting the castle, Valmont builds and circulates an identikit image of her. Diabolik scales the castle's sheer walls as the police lie in wait, and steals the necklace. Driving on his getaway, he and Eva fool the police by pulling a mirrored film across the road and using dummy decoys of himself; Eva is injured while setting up the film. While visiting her private doctor, Eva is recognised from the identikit image and abducted. To rescue her, Diabolik boards Valmont's airplane with the stolen $10 million and the necklace to trade for Eva. He is ejected from the plane, but manages to grab Valmont just before a bomb he had planted earlier explodes. Diabolik rescues Eva as Ginko and the police close in on them. Eva makes her escape, while Diabolik loads a gun magazine with the emeralds and fires them at Valmont, killing him. He then seemingly commits suicide by taking a mysterious capsule. As the police hold a press conference about Diabolik's death, he is about to be autopsied when he returns to life, having faked his death using a technique created by Tibetan lamas which requires an antidote to be administered within twelve hours;