“One by One” is based on the true life story of David Rosenau. Dave started his vocation as an apprentice funeral director and became a guard in a jail. Soon, he found himself as an undercover narcotics detective and a homicide investigator. But God had something else in mind for him. After a life-threatening injury, Dave reluctantly followed a calling to become a WELS pastor, where he has made a difference in countless lives for time and eternity.