In 1939, Shanghai is an isolated island. Upstairs from an unremarkable old bookshop in the French Concession, an underground Party member known as “Shadow” writes intelligence reports in invisible ink every night. His public identity is that of a quiet clerk in the archives department of the Wang Jingwei regime’s secret service headquarters. When a highly classified list is accidentally exposed, he must protect the emergency escape route codenamed “Lighthouse” amid a web of Japanese agents, undercover military intelligence operatives, and gang forces. Tonight, the flowerpot on his windowsill has been turned to the left. It’s a warning sign.
