This one is about 5 or 8 yrs old the babysitter is high school runner. This is her 1st time baby sitting for this
couple who have two children upstairs. The calls start as breathers then creepier then he kills the one friend who comes over. Please help me find the name of it?
“When a Stranger Calls” (2006)
https://www.imdb.com/title/tt0455857/
From IMDb:
“During a babysitting gig, a high-school student is harassed by an increasingly threatening prank caller.”
In this movie, the children are upstairs (“First bedroom at the top of the landing.”, the mother says it at 0:42 in the trailer below), and the Stranger asks: “Have you checked the children?”
Trailer:
This 2006 version is a remake of the 1979 movie with the same title:
“When a Stranger Calls” (1979)
https://www.imdb.com/title/tt0080130/
If you think that this 2006 remake is the movie you are looking for, then please select my answer above as Best Answer, there is an option for that. Many thanks.