Hello everybody,

I've been trying for a long time to find a movie that I saw a few years ago on television. I do not remember the actors or the director so I put a list of everything I can remember:

- It should be a 70-80's thriller movie. Very dark.
- A man stalks two children throughout the movie. This man is not seen. We only see his sneakers. I remember in one scene he was stalking them around a fair or amusement park.
- This man kills an older woman. I don't know if she is the children's grandmother or the babysitter.
- The kids are accompanied by a adult man.

And that's all I can remember. I hope you can help me.

Greetings and thank you.