They meet for the first time, after a horrible accident, underneath a truck: the sad and angry Bodo, a small time criminal who is always running, from himself as well as the law; and Sissi, a shy, quiet nurse who works in a psychiatric clinic. Bodo saves Sissi's life, which is literally hanging by a thread, then disappears without trace. Obsessed by the incident, Sissi sets out on a mission to find the mysterious stranger and to discover whether their paths crossed through simple blind chance or by the intricate mechanisms of destiny itself.