某晚，丁娟赴约去见男友李良，发现他死在自己屋内。东海市公安局干警钱凯（徐敏 饰）、陈明辉（仲星火 饰）接到报案后，火速赶到案发现场。法医鉴定李良之死属他杀后，两人注意到一些诸如伤口上细小的鸟类羽毛、茶杯上明显的指纹之类的蛛丝马迹，其中在李良的笔记本上，有一句“阿三，我决不放过你！”的话。
调查后，小钱老陈得知与李良相熟的名叫阿三的共有两人，一为在黄山青溪农场工作的绰号为“橡皮鱼”的阿三，他和李良曾在钱财上有过纠纷，一为曾与李良共过事的东海电视台摄影师方明山（严翔 饰），他与李良曾有很深的矛盾。经过取证鉴定，方明山成为重大嫌疑人，但案件并非如此简单……

DESCRIPTION: In this riveting debut of breathtaking scope, a young girl discovers her father's darkest secret and embarks on a harrowing journey across Europe to complete the quest he never could -- to find history's most legendary fiend: Dracula. When a motherless American girl living in Europe finds a medieval book and a package of letters, all addressed ominously to "My dear and unfortunate successor..." she begins to unravel a thread that leads back to her father's past, his mentor's career, and an evil hidden in the depths of history. In those few quiet moments, she unwittingly assumes a quest she will discover is her birthright: a hunt that nearly brought her father to ruin and may have claimed the life of his adviser and dear friend, history professor Bartholomew Rossi. What does the legend of Vlad the Impaler, the historical Dracula, have to do with the 20th century? Is it possible that Dracula has lived on in the modern world? And why have a select few historians risked reputation, sanity, and even their lives to learn the answer? So begins an epic journey to unlock the secrets of the strange medieval book, an adventure that will carry our heroine across Europe and into the past -- not only to the times of Vlad's heinous reign, but to the days when her mother was alive and her father was still a vibrant young scholar. In the end, she uncovers the startling fate of Rossi, and comes face to face with the definition of evil-- to find, ultimately, that good may not always triumph.