The drama contains many cases which has unexpected twists and suspense. On every cases, a paralegal, a police, a psychologist and a mysterious woman with the ability to predict the future will help and solve difficult cases. Liang Wenjie (Tay Ping Hui) is a paralegal with a sharp mind and he is determined to find his long-lost sister who turned out to be dead. While finding his long-lost sister, he met Feng Xuezhi (Paige Chua) who helped him with many things.
Guo Yongyan (Zhang Yaodong), a psychologist, met Zhao Anni (Joanne Peh) and helped each other in cases. Together, four of them remain successful in solving cases until they realize a traitor among four of them..