Flottans kavaljerer

Conrad Crusenhielm is a Count who is engaged to be married to Margareta. When he is having his bachelor party, he is hit on the head and loses his memory. A deserting private marine, by the name of Karlsson, beats him up and changes clothes with him and makes it look like Conrad has been murdered. Some other marines find Conrad and, since he is dressed like a marine, they think he is Karlsson and take him on a mission to another country.