According to Variety, Bruce Willis has been cast opposite Halle Berry in the James Foley-directed psychological thriller Perfect Stranger for Revolution Studios.

Pic is expected to begin production in early 2006.

In the film, which is set in the world of the Internet, Berry plays a woman who goes undercover, both on and offline, to investigate a friend's murder. Willis will play one of the chief suspects Berry is investigating.

Elaine Goldsmith-Thomas, partner at Revolution and head of Revolution Studios' East Coast office, will produce the pic. Deborah Schindler will serve as an exec producer.

Perfect Stranger was originally written by John Bokenkamp, with rewrites by Frank Rinzulli and Todd Komarnicki.

"We are delighted that Bruce is joining our cast and we are excited to be working with him," said Goldsmith-Thomas. "This is a movie about secrets, lies and Internet chatter, where suspects and villains often change roles, and an actor of Bruce's caliber will certainly add layers of complexity."

Willis is currently in pre-production on Die Hard 4 for Fox. He was most recently seen in Dimension's Sin City and Warner Bros. and Miramax's Hostage. Thesp recently dropped out of New Line crime drama Solace, which had been set to start production this summer.

Goldsmith-Thomas' credits include Revolution's Mona Lisa Smile and Maid in Manhattan. She will next produce the comedy Slammer, to be directed by Adam Shankman and starring Sarah Jessica Parker.