I'm pretty sure this is the movie Mrs. Salad wanted to watch last year, instead of the arty/pretentious Dostoyevsky-based Jesse Eisenberg flick we got instead. Same title. They should make a law against that.
I liked this one a bit better. Richard Gere (yes, this is the second Richard Gere movie in a row) plays Paul Shepherdson, a retired CIA spook. His pre-retirement job was tracking down a deadly Russian assassin dubbed "Cassius". Cassius was never found, but Shepherdson claims that he must be dead, since assassinations with his modus operandi have stopped.
But a US Senator gets murdered with Cassius's trademark throat-slitting technique. This catches the notice of FBI agent Ben Geary (Topher Grace), who prevails on CIA head Tom Highland (Martin Sheen) to bring in Shepherdson to try once again to locate and neutralize Cassius.
Things are (of course) not what they seem, the characters have hidden motives, and so on. Decent acting, of course. There are PG-13 levels of violence and language.