Sandra Thigpen

Cristina, back from her honeymoon trip, searches in vain for Burke; Meredith, Cristina, Izzie and Alex spend their first day as residents with their own groups of interns.

A clue at the scene of the death of an armored-car driver leads Beckett and Castle back to an old case solved by Esposito. Complications arise when they learn Esposito might not have been telling them everything about his relationship with the culprit.

A serial rapist is found dead of suffocation; investigators probe the murders of a crematorium owner and a girl found behind the crematorium.