One Chicago & FBI Wiki
One Chicago & FBI Wiki
Double Helix
Season: 1
Episode: 7
Original airdate: April 2, 2017
Written by: Elizabeth Rinehart
Directed by: Donald Petrie
Episode chronology
Previous episode: Dead Meat
Next episode: Lily's Law


When a pregnant woman is found murdered and her baby cut out of her, the State's Attorney's Investigators race to find the baby and the killer. The case is complicated when it's revealed that the killer's DNA matches that of her father: a convicted serial killer already in prison. Both killers then attempt to use the DNA evidence as their ticket to freedom.


Main Cast

Guest Stars


  • Keely Vasquez as Amber
  • Lindsey Pearlman as Doctor Joy Fletcher
  • Andrew Varela as Doug Klein
  • Michelle Roberts as Willow Jones
  • Katie Klein as Woman #1
  • Anna Weis as Woman #2
  • Candice Monique as Woman #3
  • Tania Richard as Katie Johnson
  • Bridget Mary Brown as Maria
  • Nathaniel Elfant as Bicycle Messenger
  • Rebecca Jordan as Court Clerk
  • Eric Lynch as Officer Dichter
  • Keith Uchima as Man


Background information and Notes

Chicago Justice season 1
Episodes FakeUncertainty PrincipleSee SomethingJudge NotFriendly FireDead MeatDouble HelixLily's LawCommaDrillAQDFool Me TwiceTycoon
Characters Peter StoneAntonio DawsonLaura NagelAnna ValdezMark Jefferies