The television series "Castle" is filmed exclusively in Los Angeles, California. Los Angeles sets the stage for "Castle," which is an American drama and crime series. Although filmed in California, the television series documents the work of detectives and agents in resolving uncommon crimes in New York City.
The production of "Castle" dates back to 2009. The series ultimately revolves around the working and budding personal relationship between a murder-mystery novelist, Richard Castle, and Kate Beckett, a homicide detective. The two meet when the New York Police Department receives word of a real-life crime that plays out like a crime in one of Castle's stories. The NYPD initially brings Castle in for questioning, then finds him helpful for his crime-solving efforts.