Hawaii Five-0's Eric Russo is ready to stick around.

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Danny's (Scott Caan) nephew made a return during last week's episode, and the CSI lab tech will aid the Five-0 once more this Halloween. As much as Danny would like Eric (Andrew Lawrence) to move out, is seems viewers will get to capitalize on Eric's comedic mishaps for the foreseeable future.

In the holiday episode, Eric and Five-0 will find themselves hot on the heels of a serial killer. Clearly a fan of Marry Shelly, this murderer will have a thing for neck bolts.

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"It's Halloween in O'ahu, and Five-0 must track down a serial killer inspired by Frankenstein," CBS teased. "Also, Jerry calls Five-0 for help when an armed gang raids a blood bank, and Danny must track down Grace who lied and snuck out to a Halloween party."

Danny may be distracted by his nephew and his wayward daughter, but the detective will make time to bond with his son as well. Charlie will spend Halloween in the hospital, but his dad will make sure he doesn't miss out on some classic trick-or-treating.

"Na Pilikua Nui (Monster)" will air on Oct. 30.

Hawaii Five-0 airs Fridays at 9 p.m. ET on CBS.