The Glass House (2001)

Two adolescents, 16-year-old Ruby and her 11-year-old brother Rhett, tragically lose their parents in a devastating car crash. Their guardianship is entrusted to Terry and Erin Glass, close friends of their late parents. Yet, as peculiar actions and unsettling conduct from Terry and Erin emerge, Ruby's instincts are set ablaze with suspicion, raising chilling questions about whether they have unwittingly plunged into a sinister and perilous trap.