Catch Surplus

In the early winter of 1985, a disappearance of a foreign businessman broke the tranquility of the island city. Ding Lei was ordered to face the danger and after a thorough investigation, he found that things were not as simple as they appeared. Who kidnapped the foreign businessman? What is the purpose of the kidnapping? Who is the mysterious caller? Is it a bidding rival of foreign investors? The foreign businessman's son mentioned someone inexplicably, which frightened Ding Lei.