Babysitter's Nightmare (2018) on Netflix

Plot summary

Daphne Hart is a registered nurse, and the hospital where she works lets her go over a negligence accusation that was wrongfully made against her. For the weekend she takes a job as a babysitter at a wealthy doctor's suburban estate, looking after the doctor's diabetic young son. Another babysitter in the same area is murdered, and a killer is on the loose. Daphne is trapped inside the desolate house with the child in her care, and she wants to escape the danger and reveal the killer's identity.