Stranger in the House (2016)

Upon returning from her honeymoon, Jade discovers that the caregiver she hired to look after her recently widowed father has seduced him into marriage and has the run of the home. When he suddenly dies following a fall, Jade suspects foul play and launches her own investigation after finding out that her new stepmother had her father change his will leaving his new bride nearly everything. It's a race to expose the truth and bring her father justice while protecting her legacy.