Sea of Love

Harold Becker directed this 1989 film starring Al Pacino and Ellen Barkin.

Suspense thriller about a detective who is searching for a serial killer who finds victims through a lonely hearts column.

Barkin is the love interest and possibly the killer.

Intense, taut mystery with both actors turning in pro performances.

http://www.imdb.com/title/tt0098273/

The Big Sleep

Bogart and Bacall in a 1946 classic from Howard Hawks.

Their chemistry is evident in this noir mystery about a rich family that hires detective Philip Marlowe to protect the patriarch's younger daughter. But Marlowe falls for the older sister. Can she be trusted?

Great thriller-mystery with killer cast.

http://www.imdb.com/title/tt0038355/

Charade

Cary Grant, Audrey Hepburn, and Walter Matthau star in this 1963 Stanley Donan comedy/romance/mystery that is fun and a delight.

Hepburn, finding out she is a widow, is stalked by nefarious strangers who are looking for wartime booty that her late husband stashed away. She turns to Cary Grant for help...but is he to be trusted?

The plot twists, Grant and Hepburn are great together, and the movie charms and delights.

http://www.imdb.com/title/tt0056923/

The List of Adrian Messenger

1963 film directed by John Huston starring George C. Scott, Kirk Douglas, Dana Wynter.

Murder mystery with an interesting twist: stars Tony Curtis, Robert Mitchum, Frank Sinatra, and Burt Lancaster all appear in cameo roles but are disguised. Half the fun is trying to pick out who's under the heavy make-up and prosthetics. It adds to the enjoyment but the film holds up on its own as a suspenseful mystery.

http://www.imdb.com/title/tt0057254/