Bob (Leslie Banks) and Jill Lawrence (Edna Best), a British couple on vacation in Switzerland, with their daughter Betty befriend a foreigner, Louis Bernard, who is staying in their hotel. One evening, as Jill dances with Louis, she witnesses his assassination. Before dying, Louis confesses to being a French spy and passes on to the couple some vital information to be delivered to the British consul. However in order to ensure their silence, the assassins, led by the charming and nefarious Abbott (Peter Lorre), kidnap their daughter. 75 minutes.