Ricin chain A. This vaccination is effective for several months due to the body's production of antibodies to the foreign protein. In 1978 Bulgarian defector Vladimir Kostov survived a ricin attack similar to the one on Georgi Markov, probably due to his body's production of antibodies. When a ricin-laced pellet was removed from the small of his back it was found that some of the original wax coating was still attached. For this reason only small amounts of ricin had leaked out of the pellet, producing some symptoms but allowing his body to develop immunity to further poisoning. The seeds of
The Umbrella Coup who wants a real killer. Lecomte's performance is convincing and consequently he receives a contract to finish off arms dealer Otto Krampe. He is supposed to kill Krampe with an umbrella containing a built-in syringe full of potassium cyanide at his birthday party in St-Tropez. Lecomte takes the don for a producer and believes this was all part of shooting a film. The Umbrella Coup The Umbrella Coup () is a 1980 French comedy film directed by Gérard Oury, starring Pierre Richard, Gordon Mitchell and Gert Fröbe. The creation of the film was inspired by several assassinations of Bulgarian dissidents