Sinister Beings (Chinese: 逆天奇案) is a 2021 Hong Kong crime television drama produced by Television Broadcasts Limited (TVB), starring Ruco Chan, Ben Wong, Rosina Lam, Crystal Fung as the main leads.

[4][5] Sinister Beings was the highest rated TVB drama broadcast in 2021.

Hui Chun-sum (played by Ruco Chan) is an elite in the Organised Crime and Triad Bureau, but he aims to join the Special Duties Unit; while Sum Wai-lik (played by Ben Wong) is another elite in the Organised Crime and Triad Bureau.

Chun-sam gives up his dream of joining the Special Duties Unit and stays in the Organised Crime and Triad Bureau.

Chun-sam and Wai-lik work together to fight battles of wits with criminals to solve complex cases.