Link Click follows the story of Cheng Xiaoshi and Lu Guang, two men who work at a small photography shop called “Time Photo Studio”. They have the ability to enter people’s photos and relive their memories, which they use to help their clients solve mysteries and fix problems.
How does Time Photo Studio’s Service work?

The service offered by Time Photo Studio is called “Time Travel Photography”. To use the service, a client must provide Cheng Xiaoshi and Lu Guang with a photo taken within the past 12 hours. Cheng Xiaoshi then enters the photo and relives the events of that day.
He can see and hear everything that happened, and he can even interact with the people in the photo. Lu Guang stays outside of the photo and observes Cheng Xiaoshi’s actions. He can also use his knowledge of the past to help Cheng Xiaoshi solve the case.
Limitations

The time travel photography service is limited in several ways. First, Cheng Xiaoshi can only stay in the photo for a maximum of 12 hours. Second, he cannot change the past. He can only observe and interact with the events that have already happened. Third, the service can be dangerous. Cheng Xiaoshi can be injured or killed in the photo, and his actions can have unintended consequences in the present.
Can these memories guide them to find out the truth?
From #LinkClick Season 2 EP04 pic.twitter.com/KHn9kiKwVH
— Link Click (@LinkClick_EN) July 28, 2023
Despite the limitations, the time travel photography service is a powerful tool that can be used to solve many different kinds of cases. Cheng Xiaoshi and Lu Guang have used the service to solve murders, missing persons cases, and corporate espionage cases. They have also used it to help people who are trying to change their past.
Cases Solved Using Time Photo Studio in Link Click

One day, they are hired by a client to investigate the disappearance of her husband. The client provides them with a photo of her husband on the day he disappeared. Cheng Xiaoshi enters the photo and relives the events of that day. He discovers that the husband is involved in a secret meeting with a group of men. Cheng Xiaoshi and Lu Guang then use this information to track down the husband and solve the mystery of his disappearance.
One episode is about an architect named Chen Xiao who regrets not playing in the final game of his high school basketball team. He hires Cheng Xiaoshi and Lu Guang to use their time travel photography service to help him change the past and win the game.

In another case, they are hired by a company to investigate a corporate espionage case. The company provides them with a photo of a meeting between the CEO and a rival company. Cheng Xiaoshi enters the photo and relives the events of the meeting. He discovers that the CEO was planning to steal trade secrets from the rival company. Cheng Xiaoshi and Lu Guang then use this information to stop the CEO from carrying out his plan.

In conclusion, Cheng Xiaoshi and Lu Guang have to deal with criminals, corrupt businessmen, and even ghosts. But they always manage to solve the case and help their clients using the Time Photo Studio. As the series progresses, Cheng Xiaoshi and Lu Guang learn more about their powers and how to use them. They also learn more about the secrets of the past. The series culminates in a final case that is the most challenging and dangerous of all. Watch the series here as it all comes down to the most-awaited climax.