The Spider.

Valerie St. Cyr, seizes a chance for excitement and money, deserts her infant daughter Joan and her impoverished husband and runs away to Paris with the Count Du Poissy. Years later, without knowing that they are mother and daughter, both Valerie and Joan fall in love with artist Julian St. Saens, who rejects the former but becomes engaged to the latter. Enraged, Valerie convinces the count to kidnap Joan, but after she is captured, Joan stabs the count to death. When Valerie learns that Joan is her daughter, she takes the blame for the murder and goes to the guillotine while Joan, still unaware that Valerie is her mother, makes plans with Julian for their marriage.