It was the 22:45 story on radio 4 for the last fortnight. I thought it was very impressive. iF I try and explain I won't do it justice- a married man disappears while at a conference abroad, his wife is at first irritated then scared, the faultlines in their marriage etc etc. That sounds kinda formulaic but i thought it was very well written. The author is one Jane Rogers, I'd never heard of her.