At the age of twenty-nine, Hannah Martin has lived in six different cities and held countless meaningless jobs. On the heels of leaving yet another city, Hannah moves back to Los Angeles and takes up residence in her best friend Gabby's guestroom. Hannah goes out to a bar one night with Gabby and meets up with her high school boyfriend, Ethan. Just after midnight, Gabby asks Hannah if she's ready to go. A moment later, Ethan offers to give her a ride later if she wants to stay. Hannah hesitates. What happens if she leaves with Gabby? What happens if she leaves with Ethan? In concurrent storylines, Hannah lives out the effects of each decision. Quickly, these parallel universes develop into radically different stories with large-scale consequences for Hannah, as well as the people around her.

Thora and Santi are strangers in a foreign city when a chance encounter brings them together and intertwines their fates. Thora thinks she's finally found a kindred spirit with the same intelligence, offbeat humor, and desire to look up instead of straight ahead. But days later, Santi is cruelly taken from her in an accident. But this is just one of the many connections they share. Like two satellites trapped in orbit around each other, Thora and Santi meet again: as a nurse and dying patient; a teacher and prodigy student; a cynic and a believer. In numerous lives they become friends, colleagues, lovers, and enemies, but how and why? When ominous patterns begin to emerge and the lines between worlds blur, Thora and Santi come to a shocking revelation, they must discover the truth of their strange attachment before their many lives come to a final end.

"Hannah Martin's life isn't shaping up into much of anything. Since graduating college eight years ago, she has lived in six different cities and held countless meaningless jobs ... She takes up residence in her best friend Gabby's guest room. Along with Gabby and Gabby's husband Mark, [she goes] out to a bar where they meet up with some of [their] old friends, including Hannah's high school boyfriend, Ethan. Shortly after midnight, Gabby asks Hannah if she's ready to go. But then Ethan offers to give her a ride later if she wants to stay. Hannah hesitates. What happens if she leaves with Gabby? What happens if she leaves with Ethan? [This book] is told in two concurrent storylines following the consequences of each choice"--