SF9 have dropped their concept film for 'THE PIECE OF9'.

In the concept teaser video, SF9 are on the search for something in the dark. 'THE PIECE OF9' is the group's upcoming 12th mini album featuring "Puzzle" as the title song, and it's set to drop on January 9 KST.

Watch SF9's 'THE PIECE OF9' concept film above, and let us know what you think in the comments below.