Olivia Sudjic’s debut novel Sympathy is a dazzling examination of the morals and customs of our gadget-led lives, a sharp and slippery tale of unreliable identities and assumed connections. It’s narrated by 23-year-old Alice Hare, an unhinged Englishwoman in New York who becomes obsessed with the online presence of 32-year-old Mizuko Himura, a Japanese teacher...