Help Needed

I came across a clipping of a chess puzzle from a local paper some time ago & I'm not making much progress with it. It's entitled "White to play & win", so I assume it's about winning material but I just cannot see how...

Unfortunately, there's no solution with the puzzle which is why I'm asking for help.

Here's the FEN string:  4r1k1/5p2/pq1p2p1/n3r2n/Pp4Q1/1P1BN2P/4RPP1/4R1K1 w - - 0 1

Houdini gives Nd5 followed by the bishop sacrifice on g6 as winning for white.

Strange, Nd5 was my main idea but I couldn't get very far with it. I'll look at that again - thanks Crazy  

I ran it through Problemist on the off-chance but it didn't come up with anything.