On a snowy December morning, Nellie's mother leaves home, promising to return, but disappears without a trace in a strange city. Her daughter's love for her is so strong that it cannot fade away after a decade. From her diary entries, Nellie learns a terrible family secret - she is the heiress of a copper watch, and, therefore, has the gift of dedicated copper witches. But every gift has a dark side. Will Nellie use copper power to find her missing mother? Will the ghosts of her executed ancestors drown her soul in the Black Lake?