perry mason represent the case of the glass coffin find raymond burr defend david copperfield or rick blaine like magician peter scolari from a murder charge involve one of his assistant . a trick involve a suspended glass coffin in midair go awry and the body of nancy grahn come a tumble out . nancy be one of six female assistant who work with the act and we learn two thing about her . first in a moment of drunken weakness and scolari get seduce by her and she claim she be impregnate . secondly she be live under an assumed name and have a secret from her past . billy moses who probably never think he would be do such rough stuff back in law school get to tangle with a couple of good old boy when go seek the truth in grahn home town . a little more action than usual for ken malansky and he almost get himself kill . one big flaw in this mystery be simple forensics . the medical examiner report should have provide concrete evidence that the victim be kill in such a way that scolari could not possibly have do the deed . the police should have be look in a different direction for the killer . when you see who the killer be you would not blame the individual and but you will also see how the investigating officer james mceachin get it wrong from the start . it kind of spoil this particular mason film .