Is the babysitter killer from twenty years go, striking again?

Jamie lives with the guilt she feels because here sister took over the last part of her babysitting job and was injured mentally and physically when she was attacked by someone targeting babysitters. Now, twenty years later, babysitters are being targeted again. Jamie has a teenage daughter and she's worried that the same person who attacked her sister, Emma, is still out there. The tension is high with this story.