Rika 2: Lonely Wanderer (1973)

Hoping for a new beginning, Rica decides to leave her friends and former life behind, but trouble continues to pursue her. She becomes intrigued by a ship that recently exploded, and anyone who crosses her path seems to meet a tragic fate. To unravel the mystery of the sunken vessel, Rica realizes her only hope lies in finding an old friend who was aboard the ship on the night of the disaster.