""A biochemist and his dishy wife arrive in Berlin for a conference at which a scientist and his controversial Arab funder will announce breakthrough research. While his wife checks into the hotel he grabs a cab to return to the airport for his briefcase left at the curb. En route an auto accident puts him in a coma from which he awakes four days later without identification and with gaps in his memory. He goes to the hotel: his wife refuses to recognize him and another man has claimed his identity. With help from a nurse the cab driver a retired Stasi agent and an academic friend he tries to unravel what''s going on. Is the answer in the briefcase?""