An enthralling story about desire, new love and the mysteries of science from the Pulitzer Prize-winning author of The OverstoryStuart Ressler, a brilliant biologist, sets out in 1957 to crack the genetic code. His efforts are sidetracked by other, more intractable codes - social, moral, musical, spiritual - and he falls in love with a member of his research team.Years later, another young man and woman team up to investigate a different mystery - why did the eminently promising Ressler suddenly disappear from the world of science?Strand by strand, these two love stories twist about each other in a double helix of desire.