"Hap and Leonard" is a series of novels written by Joe R. Lansdale that follows the adventures of two best friends, Hap Collins and Leonard Pine. Set in East Texas, the stories blend elements of crime, mystery, and dark humor, showcasing the duo's unique personalities and their struggles against various adversaries. The series has been adapted into a television show that aired on SundanceTV from 2016 to 2018. The show captures the essence of the books, featuring themes of friendship, loyalty, and social issues, while maintaining a gritty and entertaining narrative style.