The Wrong Number

This is a non-genre story with two story threads. The main thread is of teenagers goofing off and also daydreaming about relationships with other teenagers. The second thread is a business owner plotting to and killing his wife. The threads intersect in that as part of goofing off the teens make prank phone calls and happen to call the business owner's home during the murder. Rather than then calling the police the teens go to the house themselves, get caught, and are charged with the murder.