"Crazy, dangerous, prophetic" Angela Carter In DOWNRIVER, Iain Sinclair traces the ruins of Margaret Thatcher's reign through the lens of a fictional film crew that has been hired to make a documentary about what's left of London's river life. The Thames may still flow through the heart of the capital, but life along its shores has changed dramatically. DOWNRIVER is a savage, satirical quest to understand how people's lives, a government's policies and a legendary waterland conspire together in a boggling display of self-destruction.