This would paved the way should something actually happen and Doug does die for some reason.

She does remark that Doug doesnвЂ™t look healthy. Therefore no true pattern of murder for gain. Even though her husband had similar symptoms, there was no evidence that she killed her husband. There is some mystery in whether or not Lynne did kill her step-daughter, but not a lot. As with many noir style films the emotional rollercoaster is part of the plot. There are twists and turns but they are mostly emotional, did she, didnвЂ™t she, she couldnвЂ™t, she could. It is a crime/drama with film noir elements. вЂњA Blueprint for MurderвЂќ was released in 1953 and was directed by Andrew L. On the last night of their cruise Cam decides he must take desperate steps to save Doug. Trying to hide that he suspects Lynne, Cam starts romancing her. In fear for his nephew, Cam decides to take the same cruise so as to keep an eye on Lynne. In the meantime Lynne tells Cam that she will be taking Doug on a trip to Europe. She is brought to court but there isnвЂ™t enough evidence to charge her. Still the police know that Polly was poisoned and Lynne has a motive and opportunity. CamвЂ™s brotherвЂ™s body is exhumed but no Strychnine is found.

An investigation is launched and Lynne is suspected. The autopsy shows that Polly died of Strychnine poisoning. Lynne could only inherit if both children died.Д¬am doesnвЂ™t believe that Lynne could do such a thing but he decides to tell the police and have an autopsy done on Polly. The children were living off the interest of that trust. Fred points out that CamвЂ™s brother had his estate put into a trust. Cam is aghast that Polly may have been poisoned. She checks the symptoms in the encyclopedia and finds that they mimic those for strychnine poisoning. Maggie also writes murder stories for magazines. She says that CamвЂ™s brother had similar complaints before he died. Maggie mentions PollyвЂ™s symptoms sounded familiar to her. One evening Cam is visiting his brotherвЂ™s lawyer, Fred Sargent (Gary Merrill), and his wife Maggie (Catherine McLeod). She had been raising the children by herself after the death of her husband. Whitney вЂњCamвЂќ Cameron (Joseph Cotton) is the childrenвЂ™s uncle. She has been caring for Polly and her brother Doug (Freddy Ridgeway) ever since their father died. Lynne Cameron (Jean Peters) is PollyвЂ™s step-mother. Polly Cameron is rushed to hospital where she dies of a mysterious illness.

Blueprint for murder movie