Simon Westover, a Londoner and prize-winning bridge-designer, dreams of creating something as iconic as the Golden Gate bridge. His ambition is to link things up. But he is unaware that his self-absorption has the opposite effect on his relationships. Just after the 2008 financial crash his wife initiates a separation and he is faced with a series of crises that threaten to destabilise him altogether. His family, friends and colleagues are caught up in the turmoil that follows. Simon is, at first, oblivious to the need to change his ways.