When a deaf father of 3 is stabbed to death in his doorway, Det. William Brown must enter the silent world of the hearing-impaired. As he closes in on the potential killers, he gets shocking information that may link his suspects to an earlier unsolved murder.

In Birmingham, Det. Chris Anderson works to unravel the mystery of a motorcycle club president shot in the head after being run off the road. And Louisville Det. Corey Cadwell races against the clock to catch the killer of a mother of seven, strangled to death in her apartment.