Anna and her 8-year-old son, Anders, are on the run from Anders’ violent father. They move to a secret address in a giant apartment building. Anna is terrified that her ex-husband will find them and buys a babycall to make sure Anders is safe while he sleeps.

But strange noises echo in the babycall from elsewhere in the building. Anna overhears what she believes is the murder of a child. Meanwhile, Anders gets a mysterious, dark-haired friend who comes and goes as he pleases. Does Anders’ friend know something about the sounds in the babycall? Why is there blood on Anders’ drawing? Are they still in danger?