Dexter and Lumen stalk a violent killer; Batista makes a difficult decision when Debra gets into some trouble from the fallout of the Santa Muerte case.
Barba relies on old evidence, and faces off against a former colleague, during the trial of child abductor Lewis Hodda.
An emancipated minor (Emily Rios) working as a factory manager falls ill on the job; Foreman takes on a pediatric case that has him questioning whether he can function without House's oversight.
The kidnapping of a young boy reminds Cragen, Munch and Benson of an unsolved case from 13 years earlier.
When a fashion designer is killed on the night of his boutique opening, Cosgrove and Shaw must track down a suspect with very little evidence and no witnesses; Maroun is shocked to find her own name on the defense's witness list.