They're also massive in South Korea and a pretty entertaining movie about them came out in South Korea in 2016 called "Master" [1]. It's highly dramatized, but has a few scenes in it of the big sales gatherings of some of these scams. They have much of the appearance and feel of a mega-church gathering (also common in the country) and seem to use many of the same "make people feel good and then exploit them along the way" techniques.
It's my understanding that the movie was made simply to help raise awareness of these predatory groups as the population they tend to target don't have the resources to do it themselves.
Hacker Cinema
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They're also massive in South Korea and a pretty entertaining movie about them came out in South Korea in 2016 called "Master" [1]. It's highly dramatized, but has a few scenes in it of the big sales gatherings of some of these scams. They have much of the appearance and feel of a mega-church gathering (also common in the country) and seem to use many of the same "make people feel good and then exploit them along the way" techniques.
It's my understanding that the movie was made simply to help raise awareness of these predatory groups as the population they tend to target don't have the resources to do it themselves.
1 - http://www.imdb.com/title/tt5735464/