Kevin Costner isn’t done showing off his edgier side, as he is in negotiations to star in Millennium Films’ “Criminal,” which “The Iceman” helmer Ariel Vromen is on board to direct.

JC Spink, Chris Bender Jake Weiner and Kevin King are producing. Christa Campbell, Lati Grobman, Jason Bloom, Avi Lerner, Trevor Short, Boaz Davidson and Mark Gill are exec produce. Douglas Cook and David Weisberg are writing the script, which revolves around a ruthless killer who, rather than spend the rest of his life in jail, chooses to be used in a medical experiment in which the brain of a recently murdered field operative is implanted in his head.

In the last year, Costner has stayed busy mixing lighter material with darker, edgier projects. Costner followed his critically acclaimed perf in “Man of Steel” as Clark Kent’s father with two action-heavy roles in “Jack Ryan: Shadow Recruit” and “Three Days to Kill” and was most recently seen in the sports drama “Draft Day.”

Costner still has the Mike Binder drama “Black and White” and the Disney sports pic “McFarland” set for release this year.

He is repped by WME and Prism Creative Management. Vromen is repped WME and Untitled Entertainment.