Deep in the British countryside Lynda and her teenage son Rust prepare for Christmas hanging
fairy lights and making decorations. The first door of the advent calendar is opened but the
chocolate inside tastes off. Rust receives his first Christmas card it's unsigned and the
message is aggressive rather than festive. The cards keep coming one each day and each more
sinister than the last and a frightened Lynda recalls a seasonal TV show from her childhood
that featured similar happenings and while she remembers it vividly there is no evidence that
it was ever broadcast... As their Christmas cheer is gradually poisoned real dead robins
replace plastic ones the turkey rots in the freezer and Rust becomes increasingly unwell
Lynda begins to wonder if her childhood Christmases were in fact as joy filled as she
remembers...