Unknown Number: When did it first air? How many seasons and episodes are there? What's the episode duration of "Unknown Number", and where can you watch it? Find out all this and more!
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. This is the Chinese adaptation of 2016 tvN drama Signal.
Unknown Number, also known as 时空来电, is Chinese television series that premiered on 2019-10-23. At the time of writing, it consists of 1 season, with 32 episodes.