不能说的事

离婚后带着两个孩子生活的乔，某天突然收到匿名短信，说同居男友丹尼与自己的女儿之间“有事发生”。不知道该相信谁的乔，向朋友倾诉，甚至打电话到儿童保护机构咨询，只为了能保护女儿。最终，乔得知了真相。Jo Shepherd, mother to Ben and Katie, lives with them and her much younger partner, triage nurse Danny. She is horrified to receive an anonymous text suggesting that "something's going on " between 11 year old Katie and Danny and, unable to identify the sender, confides in her friend Sally that Katie has been unusually withdrawn. Concerned that she is about to leave the children with Danny for a week she ultimately confronts him, resulting in him angrily walking out. Determined to hear Katie's version of events she visits her at her ex-husband Des's house to eventually discover the truth.