korean movie where man finds blue hat that turns him invisible

After experimenting on himself and becoming invisible, scientist Jack Griffin, now aggressive due to the drug's effects, seeks a way to reverse the experiment at any cost.

When Cecilia's abusive ex takes his own life and leaves her his fortune, she suspects his death was a hoax. As a series of coincidences turn lethal, Cecilia works to prove that she is being hunted by someone nobody can see.

While Professor Yun, one of the world's leading authority on genetics, is abroad, Oh In-cheol and his fiancee Yun Jin-suk take the professor's papers from his laboratory. In-cheol and Jin-suk are researching the principle of the chlorophyll and a pill that can make people invisible. In-cheol becomes invisible and catches bank con-men and child kidnappers, etc. He works hard to expose society's evil and he is pasted all over newspapers. However, the criminals follow him and discover his identity. They steal his invisible pills. The criminals become invisible and they go on to commit their crimes such as robbing banks. But they don't have any pills to reverse the effects. The criminals ultimately come to In-cheol looking for the reverse pills when they are caught by the police.

An invisible salaryman tries to become a hero.

A thief is given the means to become invisible and ends up working for a government agency.

A man buys a magic powder that makes him invisible.

Hideo rescues a Chinese guy being picked on by punks on the street, and the guy gives him a small bottle in gratitude, which contained a magical formula that makes one’s body transparent for only 3 minutes. As soon as he becomes transparent, Hideo goes to see a naked Maria, his fellow part-time worker. While he enjoys the life of an invisible man, another invisible man mysteriously appears to seduce her. To keep her from this stranger, Hideo goes for his once-a-lifetime challenge. A furious battle between two invisible men begins!

Once a boy and his faithful dog met Baba Yaha in the forest. They got an invisibility hat from her, created exclusively for doing good deeds, helping other people. Now the young hero tries his best to help everyone around him, but this often leads to misunderstandings and ridiculous situations.

A superhero becomes invisible after he swallows an Indian potion.

A scientist concocts a potion that can turn people invisible for short periods of time. Two crooks steal the potion and go on a crime spree.