Plot
Casey tries to create a rift between her father and his new wife, Jill, even as Jill's mother suddenly dies. As Jill begins to put the pieces together, she realizes her stepdaughter may be playing a deadly game.
Where to watch My Stepdaughter?
My Stepdaughter is a thriller movie featuring Emmanuelle Vaugier and directed by Sofia Shinas.
My Stepdaughter is currently streaming for free (ad-supported) on Tubi TV, VIX and VUDU Free.
It is also possible to buy My Stepdaughter on Amazon Video, Google Play Movies, Vudu and YouTube.