As Washington, D.C. detectives investigate the murder of a beautiful, young congressional aide shot dead near the Capital Mall, subtle discrepancies with the evidence show up. The murder weapon is identified as a Glock, but an eyewitness places the shooter too far away to have used a handgun. The slain woman was a player in high-stakes D.C. politics, yet DNA results reveal she was pregnant and the baby's father was a gang member. The detectives bring in a forensic scientist to retest the samples, and determine someone at the crime laboratory is altering evidence. Detectives Jarrod and Jackson must find out who is tampering with the facts...and why.