One night, a young man Ken crosses path with a woman with amnesia. Unbeknownst to both of them, the woman, named Larn by Ken, is a vampire. When her relatives find and reveal the awful truth to her, she flees from Ken, despite having falling hopelessly in love with him.

《注定偶遇 บังเอิญ รักไม่สิ้นสุด》是來自泰國新公司กองชัยภาพยนตร์的作品。影片主題的是“命中注定”的“偶然相遇”。這兩個詞原本就相互矛盾，注定的事情就不可能偶然，偶然發生事情又怎能說是注定？而影片要講述的就是這樣一個“注定”和“偶然”并行的奇妙愛情故事。