This is the last of the three prequels for The Returned (see also The First and The Sparrow), which follows one of the returned after coming back from the dead.
Only in this short story, that doesn’t really happy. The girl who disappeared 20 years ago and was probably murdered is not the main character by far. Instead we follow her boyfriend who’s gotten on with his life, is married and has a child. When the girl returns he starts wondering what to do, stay with his wife of return to her?
Which I think is a very weird choice to make. They were teenage lovers after all, twenty years have passed, not to mention the fact that he has a complete family now. However, this is basically all that happens, and I think this one (of the three) is the least a good representative of The Returned.