murder over new york be an entertaining entry in the charlie chan series of film and but if youre pay attention and a lot of plot hole reveal themselves to the observant eye . while travel to new york city for an annual police convention and chan ( sidney toler ) meet former scotland yard investigator hugh drake ( frederick worlock ) on the same flight . now employ by military intelligence and drake be track paul narvo and his hindu servant and suspect for act of sabotage around the world . drake believe that by contact narvo elusive wife and he will be able to pin down the whereabouts of the master criminal . when drake wind up dead in the library of george kirby and president of the metropolitan aircraft corporation and charlie theorizes that he be kill by a recently discover poisonous gas call tetrogene and administer via a glass pellet that release the poison when broken . summon kirby to bring all of his dinner party guest together and chan and police inspector vance ( donald macbride ) question those in attendance and a one of them may be the killer . among them be herbert fenton ( melville cooper ) and a fellow oxford student of drake and actress june preston ( joan valerie ) and unknown to drake but request by him to attend and ralph percy ( kane richmond ) and the chief designer at kirby aircraft company and and keith jeffrey ( john sutton ) and kirby stock broker . kirby butler boggs ( leyland hodgson ) be also a suspect and especially after number # 2 son jimmy ( victor sen yung ) catch him steam open a cablegram and the content of which concern boggs himself . there be some other cleverly plant character in the proceeding a well . mrs. narvo turn up a patricia west ( marjorie weaver ) and and contrary to drake suspicion that she might lead him to narvo and be actually on the run away from her former husband and a disastrous marriage . she involve with david elliott ( robert lowery ) and principal of a chemical research firm and and thereby a suspect in the tetrogene angle . a with many chan film and racial comment must be take in stride with the proceeding . this one offer two glaring one . when kirby black servant be bring in for questioning and he state that he doesn not know anything about drake murder and that he completely in the dark . chan response represent condition appear contagious . later and follow inspector vance order to round up all the hindu in new york and jimmy chan comment on their arrival with theyre all beginning to look alike to me . actually and the scene provide one of the element of comic relief in the movie and a shemp howard impersonate hindu mystic the great rashid and but be actually uncover by the police to be con artist shorty mccoy . before the movie over and two more victim fall to the clever narvo his confederate ramullah and and aircraft magnate kirby himself . to uncover the killer and chan and in concert with elliott and arranges for a test flight aboard a newly develop tr4 bomber after discover a poisoned capsule plant by mechanic on the plane the day before . before it can release it deadly poison and the brit fenton catch the fall capsule in mid air and revealing that he know about the plant . arrest and bring in for question and chan asserts that fenton be not narvo . the real narvo reveals himself when he offer a poisoned cup of water to the nervous fenton and anxious to maintain narvo secret . but chan be clever enough to be wary of such an attempt and and reveal the real murderer narvo now in the guise of stock broker jeffrey and have undergone reconstructive surgery follow a car accident . now for the plot hole . when first investigate hugh drake murder and it be maintain by the police that fingerprint find in the library do not match those of any of the dinner guest . however jeffrey or narvo be present at the dinner party . it have already be establish that drake have one non party visitor in the library and chemist elliott . if the fingerprint really do not belong to narvo and then make them an issue be pointless . also and at the end of the film when narvo offer fenton the poisoned water and how do he think he would get away with it with everyone there a a witness . but go even one good than that and how would a world travel saboteur like narvo have the time and wherewithal to establish himself a a new york city stockbroker and it just doesn not make sense . for trivia fan and a few more point bear mention . in the film and number # 2 son jimmy be a college student study chemistry a he come to pop aid to solve the case . in the prior chan film charlie chan at the wax museum jimmy be a law student . the poison gas formula would get rework in a late chan film and this time by monogram with roland winter in the chan role in dock of new orleans . in that story and poison gas be release from shattered radio tube in similar fashion to claim it victim .