This intricately plotted four-part thriller started intriguingly and dramatically with Tuppence Middleton's Fiona character returning to her home after a weekend away just in time to find that another couple is moving into her plush London family town house and that she knows nothing about it.
From this arresting opening, we soon learn that she is in a rocky marriage and indeed is separated from Martin Compston's Bram (Bram?) who despite being a doting dad to their two young boys, can't resist the old forbidden fruit when Fi's best friend knocks on his door in an inebriated state after she's fallen out with her own husband, although oddly we don't get to see her guy's reaction to the fling.
Anyway, it soon becomes obvious that everything leads back to Bram who has conveniently disappeared and can't be reached leaving Fi to turn detective to try to get her £2,000,000 house back. Everything she tries seems to lead to a dead-end but at least there's some respite for her in the form of handsome hunky Rupert Penry-Jones Toby character who seems ever so nice and supportive, or is he what he seems...?
Bram, meanwhile, on this enforced break has been enticed into bed by a confident young woman who afterwards seems to know a lot about him and just won't go away...
Cue multiple flashbacks and criss-crossing story-lines as we crucially learn that Bram has previously been lured into a dead-of-night road-rage encounter with fateful consequences not only for him, but even more so for the young passenger of another car innocently caught up in the incident.
It's strange at first to credit that it's all about the house but when you realise the price of property in London these days, perhaps it's not that much of a stretch. Anyway, over four taut, if improbably plotted and characterised episodes, each ending on a good-old fashioned cliffhanger, this show certainly kept the viewer guessing right up to the end. Well acted by the principals, once you swallowed all the improbable coincidences and plot-holes in the narrative, this was exciting and satisfying prime-time entertainment.