Sinister stepsister

Jeff Mitchell seems to have it all. He has an interesting and lucrative job, a loving wife, and two amazing kids. Therefore, life is good. However, on one bright day, a cosmic sucker punch comes out of the blue. When Jeff was in high school, unbeknownst to him, he got his girlfriend pregnant. Next, the girl moved away, had the baby, and raised her as a single mother, never telling her daughter, Carlee, who her real father was. However, Carlee's mother recently died in a tragic accident, prompting Carlee to try and uncover the truth. Maybe Jeff is not so lucky after all?