Unknown Number (2019)
| First Air Date: | 2019, October 23 |
| Last Air Date: | 2019, November 27 |
| Status: | Ended |
| Seasons: | 1 |
| Episodes: | 32 |
| Episode Runtime: | 45 min |
| Countries: | China |
| Production: | Tencent Penguin Pictures |
| Cast: | Li Xiaoran, Wang Tianchen, Du Chun, Zhao Qianzi, Ma Rui, Cheng Fangxu, Chen Ya'an |
Overview:
Through a mysterious Motorola phone, two detectives - one from the present, and the other from 15 years in the past - begin communicating and working together to solve cold cases.