77 Group's Secret
Movie| Title | 77단의 비밀 |
| User score | 3.5 |
| Release date | Jul 23, 1978 |
| Genre | Animation, Action, Drama |
| Director | Park Seung-cheol |
| Production country | South Korea |
| Production companies | Samdo Films |
| Run time | 69 min. |
Sang-ho and Sun-ja are kidnapped by someone and live in brutal abuse while performing acrobatics in a circus troupe called the "77th Dan". One day their uncle comes to visit them and they try to escape, but when Sun-ja is captured by the circus, a black hooded person suddenly appears to help them.
