Set in February of 1960, 'Horizon' is a film dealing with the struggle of losing a loved one. Charlotte, a widowed woman, raises her two children while being haunted by her past. The reality and fantasy of Charlotte's emotions clash, forcing herself to reevaluate the importance of being a mother.

While Thomas and Oscar are very much in love, after their first foster child returns to his birth mother, they find that they have different ideas about what making a family actually means.