When Lily Hayes arrives in Buenos Aires for her semester abroad, she is enchanted by everything she encounters: the colorful surroundings, the street food, the elusive guy next door. Her studious roommate Katy is a bit of a bore, but Lily didn't come to Argentina to hang out with other Americans. Five weeks later, Katy is found brutally murdered in their shared home, and Lily is the prime suspect. But who is Lily Hayes? It depends on who's asking. As the case takes shape--revealing deceptions, secrets, and suspicious DNA--Lily appears alternately sinister and guileless through the eyes of those around her. With mordant wit and keen emotional insight, Cartwheel offers a prismatic investigation of the ways we decide what to see--and to believe--in each other and ourselves.