Old Home on the Old Hill

They were just 4 orphaned children when they first met Miss Kasey. A group of children that Miss Kasey graciously took in and raised as her own. As they had just entered adulthood, tragedy struck. Miss Kasey, their mother, had been murdered. After they unfortunate event, the 4 children were never to same. Will they drift even further apart, or will they reconcile to catch the culprit?