Sting is inspired by one of humanity's greatest fears, arachnophobia, and made more monstrous than ever before. A strange little spider falls from the sky and is discovered by Charlotte (Alyla Browne), a rebellious 12-year-old girl who names it Sting. As Charlotte's fascination with Sting increases, so does its size. Growing at a monstrous rate, Sting's appetite for blood becomes insatiable. Neighbours' pets start to go missing, and then the neighbours themselves. Soon Charlotte's family and the eccentric characters of the building realise that they are all trapped, hunted by a ravenous supersized arachnid with a taste for human flesh.