Chaeyoung and Mina know each other through dating app. After they graduated, they both strive for their career and they didn't expect to meet each other again at New York's City as they were tasked to solve a case. The case was about a Chinese guy named Jason, the grandson of Uncle Seven who is a powerful old guy at Chinatown of NYC. Uncle Seven discovered that his grandson was murdered at a Chinese temple and he requested for the detectives to investigate about his grandson's case. But the detectives only have 1 week time limit as Uncle Seven was diagnosed with end stage lungs cancer. How will Chaeyoung and Mina cooperate together to solve the case? There will also be some obstacles in their life and Chaeyoung will solve one more case on what happen to a couple at Halloween, 7 years ago. Read to find out! [UNEDITED]