A main character of a game Secrets of the Past: Mother's Diary receives an unusual birthday gift from her foster parents – a letter written by her real mother. The girl is eager to know the truth about her origins and begins her own investigation. It seems that all roads lead her to a haunted mansion. A terrible tragedy occurred in that place many years ago. But old house keeps its secrets well. This is a story about love, death and treachery. Help the main character unravel all the secrets!