CSU gains a new officer in the form of sexual offences expert sergeant Ramani De Costa, who hasn't even reached the station when she is assigned to investigate the alleged rape of a university student, who was drugged and attacked before being raped. De Costa finds she has very little to go on, but keeps a firm head and attempts to build her own leads. Meanwhile, a distraught Page tries to cover up her involvement in the death of Dr. Owen Preston, but as she types up her statement, she receives a letter naming her as the beneficiary of Owen's will. Nixon investigates an armed robbery, but is distracted after a reporter gathers information on the identity of Abi's father and threatens to reveal all.