Snake in the Grass

Professor Augusta Sanderson vents anger about colleague Dr. Eugene Howells taking credit for her work. She says it's justification to kill him. After Howells is murdered, she's arrested - gun was hers, footprint at scene, though she's innocent.

After discovering a new kind of clover, a female scientist magnanimously allows her colleague to take credit for the find. When he turns up dead, all evidence point to her. When she is accused of his murder, a smitten detective works to prove her innocence.

A woman scientist finds a new type of clover but lets her coworker get all the credit for discovering it. When the coworker ends up dead, she becomes the main suspect. A detective who has feelings for her tries to prove she didn't kill him.