Trail of Love(2010)

Akai Kami wa Yuuwaku no Shirushi

Kay begins to question her identity after sorting through her late mother's things and discovering that her name is similar to that of Kimberley, the daughter of the famous Endacott family who was kidnapped twenty-four years earlier. She then finds newspaper clippings detailing the kidnapping and an entry reading, "Kay came today," in her mother's diary... Unable to write it all off as coincidence, Kay reaches out to the missing Kimberley's grandfather, Charles, to find the truth. Unfortunately, his banking partner, Ben, convinces him that Kay is nothing but a fortune-seeking fraud!

(Source: Renta!)