Shuangsheng Lingtan is a oNA (web) anime, produced by G.CMay Animation & Film.

About the production: the story comes from a manga, there are 20 episodes of about 14 minutes and its current status is "finished".

Its main genres are drama, mystery, psychological and supernatural, with themes such as Twins, Work, Detective and Zombie.

On AniList, Shuangsheng Lingtan has an average score of 65%, a good score, and appears on 3,311 users' lists.

Twin detectives Xiaotu and Xiaohu set up a business that specializes in dealing with supernatural occurrences. However, when they investigate what seems to be an ordinary “Supernatural” case, a series of bizarre events unfold. To that end, Xiaotu and Xiaohu conquer hardships with every step they take, to clear the hazy path towards the truth.

Official synopsis from AniList.