“A poignant and engaging mystery, Vivian Qu’s feature debut plunges us into the fascinating world of state surveillance in China as it follows a digital mapping surveyor’s investigation of an ‘off-the-grid’ hidden alley. Li Qiuming works at a digital mapping company, photographing the streets that comprise the maze of China’s ever-changing cities. One day while out surveying, he sees through his viewfinder an attractive woman disappearing into a secluded alley. Unable to forget the mysterious lady who has triggered his romantic imagination, Qiuming returns to where he saw her first, only to discover that the data he collected there was never registered. Even though he stands right there in front of the street sign, Forest Lane has fallen off the map of the city, as if it never existed.”—Toronto International Film Festival.