This was a tough one. But Now I see it..

Nf5+
Kf2 (Kg4 is immediate loss, because Rh4#)
Rxh2+
Kf1 (Kg1 is also an option but it will be met with the same fate as Kf1)
Ng3+
Kg1
Rg2#

Loved it. It kept me thinking for 1 day. 😅