The Invisible Doctor

The doctor spent several years developing an invisibility drug. The doctor told his assistant Xiaoyan about this major invention. Unexpectedly, after the invention of the invisibility drug spread, it caused a series of unexpected troubles. The most serious thing is that after criminals stole the medicine, they used it to steal money from banks and gold objects from museums, adding unnecessary trouble to society and the public security department. The Doctor eventually destroys the invisibility potion.