When single-mother Tereon Grant is stabbed to death in the middle of the night, all signs point to her ex-boyfriend being the killer. But when detectives Quinn and Velazquez dig deeper into the case, they uncover a dark secret that changes everything.
Mother Shaquilla Weatherspoon is found murdered with her belongings scattered around her. To the trained eye, it looks like the killer staged the crime scene. Knowing that someone wanted it to look like a robbery, the detectives investigate those closest to Shaquilla to find the truth.
When U.S. Air Force veteran John Ray is found beaten and stabbed to death in his apartment, the crime scene looks like a random robbery. But Quinn and Velazquez look further into the secretive life of Ray and find that the murder was anything but random.
21-year-old new mother, Sparkle Rai, is found by her boyfriend strangled in their apartment. He instantly becomes the only suspect, but he swears he didn't do it. Quinn and Velazquez investigate and uncover a surprising new suspect from Sparkle's past.
Neighborhood character Willie Bell is found naked and dead early in the morning. With nothing else to go on, Quinn and Velazquez discover that Willie was seen with two different women the night before he was found. With two prime suspects, they try to find the truth.
Detectives are sent to an apartment complex to investigate when 38-year-old Cassandra Bryant is found nude and barely clinging to life. She dies in the ambulance before she can identify her attacker, leaving it up to Quinn and Velazquez.
When Quinn and Vince investigate the shooting of Antwan Curry, they find a trail of blood leading away from the murder scene, meaning that someone else was hurt and fled. They set out to find this person, but is it another victim, or the killer?
After working together a few years, Quinn and Velazquez are chosen to take on the case of Apriel Allen, a woman who was murdered in her apartment two years prior. The detectives start over with a clean slate and hope to bring some peace to the family and friends of Allen.
When immigrant Mamadou Berry is horrifically murdered, Quinn and Velazquez set out to find his killer. The yearlong investigation pits the detectives against the International Robbin Crew. A ruthless Atlanta gang that doesn't hesitate to use deadly force on their targets.