Boston detective Frank Shaw (Joel Kinnaman) returns to duty after a career-changing injury that left him with permanent hearing loss. Interpreting for Ava Fremont (Sandra Mae Frank), a witness to a brutal gangland murder, they find themselves cornered in a soon-to-be-condemned apartment building when the killers return to finish it off. Cut off from the outside world, these two strangers must rely on each other to figure out the killers they don’t hear coming as their only hope for survival.