Half a century after its recording in 1970, this captivating documentary retraces the story of "Bridge Over Troubled Water", the final album, which has become cult, from the duo formed by Paul Simon and Art Garfunkel.

After escaping a Puget Sound institution, "Stepfather" Gene Clifford alters his appearance with plastic surgery and takes on another new identity: Keith Grant. Moving to Deer View, California, Keith falls for a divorced school principal, arousing the suspicions of her wheelchair-bound, computer-savvy son.