Lee Sul

Young-ho doesn't have any dreams for his life. He has been studying for three years to enter a university. He decides to send a letter to his childhood friend So-yeon. But her younger sister So-hee receives the letter instead of her sick sister. So-hee writes back to Young-ho, pretending to be So-yeon. Meanwhile, So-hee takes care of her sick sister and also runs a secondhand bookstore with her mother.

Making use of her Chinese that she had picked up while living in China, Han-young obtains her tour guide-interpreter's license and starts working as a guide in Korea. She gets used to her new surroundings and gains good results at work. However, she is forced to face challenges and changes as she loses touch with her brother In-hyuk, and the number of Chinese tourists decreases due to political tension between Korean and China.

Head of a bank center in Busan, Sung Gyu drives his daughter Hye In to her college entrance exam. A phone call comes in on Hye In’s phone with a restriction on the number display (also known by the slang black call). She takes the call, and a voice tells her, “There’s a bomb under your seat right now.” And as soon as you stop and get out of the car, it’s going to explode, she is told. In the middle of downtown Busan, the frightened run of Sung Gyu’s family begins. “Restricted Call” is an urban chase thriller about a family in an unpredictable situation due to a mysterious phone call.

It tells a realistic and relatable romance between young people wandering in love and boredom, who face each other in front of a motel elevator on the night of their seventh-year relationship.