She Knows Everything (Korean: 미쓰리는 알고 있다) is a 2020 South Korean Mini series starring Kang Sung-yeon and Jo Han-sun.

[4] This series is depicting a mystery incident that deals with human desires and truths uncovered in pursuit of a suspect involved in a mysterious death.

[5] Occurring in a reconstructed apartment, where Lee Koong-bok (played by Kang Sung-yeon), a real estate agent works, she is known with her popular name as The Queen of Nosiness or The Nosiest Queen by her neighborhood.

In Ho-chul (played by Jo Han-sun), is a self-conceited veteran detective.

Together, they often bicker and try to chase and confront each other, but when they become embroiled in a mysterious incident, they find clues and choose to work together to find the truth.