After overbidding as usual you end up in a fine 3NT by south.
West leads the heart 5 (fourth best) to the king, you duck. East returns the heart jack, again ducked by you, west plays the 2. East plays a third hand and you win.
You play the AKQ of diamonds, east pitching spades on the second and third round.
Bah, it really looks like LHO has 5 hearts so if you let him in with a diamond then you will be down 1. Is there any hope?
Scoring: IMP
2NT - 3NT
2NT - 3NT

Help

2NT - 3NT