Castle 7×16
When an astronaut, training for a trip to Mars, is mysteriously killed inside a Mars simulation, Castle and Beckett don spacesuits to investigate. But when they discover no one inside the sealed simulation could have committed the murder and no one from the outside could get in, the case takes a shocking turn
Serie: Castle
Director: Andrew W. Marlowe
Guest Star: Jon Huertas, Molly C. Quinn, Nathan Fillion, Penny Johnson Jerald, Ruben Santiago-Hudson, Seamus Dever, Stana Katic, Susan Sullivan, Tamala Jones, Toks Olagundoye