I’ve been trying to remember the name of this movie I watched some time ago. I think it was horror, maybe mistery too. Woman was staying in some house for a holiday while her husband was away for work. I think he is a firefighter(not sure). That house has two doors, one part of the house is where she is staying and in other part is some old lady. That lady also had a husband who was firefighter. Every day she goes to forrest with bike at the same time time (about 4pm) to call her husband. In some part of the movie she leaves a pie outside old lady’s door. Etc… Can someone please help?

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I forgot to add: In the end it turns out that that old lady is actually her and she was imagining everything.