What took place on the first world cruise on RMS Carinthia in 1925-26 that has remained a secret for so long? Authorities have hidden the identity of the wealthy murderer for nearly 100 years. Why? Wealthy, kind, generous, and handsome, are words used to describe the killer by his fellow passengers. How could such dark secrets about a murderer be kept from everyone on board, including the woman he fell in love with and married while traveling around the world on the Carinthia? Learn about life on board the luxury liner and meet the people who traveled together for five months, unaware of the danger posed by their fellow passenger, Davie Tidwell.