It's the title to a song from the 1960s musical On a Clear Day You Can See Forever.
Ah. Now, Nefarious Neddie wondered if Tosy and Cosh was some country music duo (hell, I dunno, the only country duo that leaps to my mind is Brooks and Dunn), and I always thought it sounded like a cop-buddy movie from 1991 starring Tom Hanks and Judge Reinhold. But a song title from a musical scored by Burton Lane to lyrics by Alan Jay Lerner? That's pretty cool.
(But I'd have gone with "Come Back To Me", personally.)