Rian Johnson's Knives Out is a murder mystery released in 2019. It’s about a wealthy family that has a party for a man named Harlan's 85th birthday. The next day, the maid Fran finds him dead of an apparent suicide. When the cops arrive so does a private investigator, that was anonymously paid to help solve the crime.
He discovers that the whole family had a strained relationship with the father. Two days before his demise, he signed all his will to his maid Fran who was the only who to truly like him. After finding out that if the maid lies she will throw up he creates an alliance with Fran.
Still unknown who hired him detective Blanc is getting closer to the murderer. When the funeral for Harlan is happening Ransom does not show up he says he was busy that day, which makes Blanc suspicious of him.
The next day, the crime lab gets burned to ashes along with the evidence for who killed Harlan. Ultimately, the maid thought she killed Harlem but didn’t and Marta saw Ransom switch the drugs and try to commit murder. When Ransom confesses to Fran on recording and confronts him he tries to kill her but he doesn't notice that it was a toy knife. After some reasoning the detective ruled it a suicide, and that Fran didn't overdose Harlan and Ransom was the true criminal.
