10:30 PM Summer is a book by Marguerite Duras. Based on this book Julles Dassin directed a film under the same title.
“During a terrible thunderstorm, a married couple, Maria and Paul, traveling with their friends, Claire, take refuge in a small Spanish hotel. That night where, while witnessing Paul and Claire making love, a distraught Maria spots a young man-wanted for a crime of passion-hiding on a rooftop. Compelled to help the murderer elude the authorities, Maria embarks on a dangerous journey that will change her life forever.”