Soul Snatcher.

The historical fantasy film basically revolves around the tale of an impoverished scholar and a fox demon in search of a magic pill. Chen Linong plays the guileless Wang Zijin, the scholar on the way to Beijing who inadvertently becomes fast friends with Li Xian’s fox demon Bai Shisan. Unbeknownst to him, the wily Bai Shisan actually has plans to use him to retrieve the magic pill that will turn him immortal.