Ten years ago Sarah Hathaway's gifted but troubled son suddenly disappeared from their home in Los Angeles. Still unable to let go she hires a private detective who unexpectedly discovers a new clue as to his whereabouts an art book containing pictures of beautiful irises that only her son could have painted. Sarah travels to Russia to pursue the lead and with the help of a mysterious mute street boy she must escape the dangers and obstacles from those who are desperate to deceive her