Rosie (Dania Ramírez) is becoming more and more convinced that Peri's (Mariana Klaveno) murder was the work of two conniving people in the upcoming episode of "Devious Maids."

In the episode titled "Sweeping with the Enemy," CarterMatt reports that the maid's suspicions that her husband was set up to take the blame for a crime he did not commit continues to grow. Rosie believes Peri was killed so that her sister Shannon (Katherine LaNasa) could inherit her properties. The woman arrived in the Westmore mansion claiming that her sibling left her the entire estate. Later on, she was seen kissing Ben (Carlos Ponce), Spence's (Grant Show) friend who convinced him to admit to the murder. Rosie thinks Shannon and Ben conspired to kill Peri for their own greed. But how will she prove it to the police?

At the moment, Spence's fate looks dire since he already told the authorities he was the murderer. It was all done due to Ben's urging. He convinced Spence that it would be best to admit it since there were supposedly many pieces of evidence against him. The night Peri died, a surveillance video captured her quarreling with Spence. He just realized that Peri had been lying to him all along about their relationship. Because of an accident, Spence could not remember that he was in love with Rosie. He thought that he was still in good terms with his first wife. Out of anger, Spence told Peri he would kill her. That night, she was dead. Could Rosie be correct or is Spencer such a good liar?

Meanwhile, Zoila (Judy Reyes) continues her masquerade as a rich woman. This time, Kyle's (Ryan McPartlin) mother, Frances (Stephanie Faracy), is setting her up for a blind date. The old lady does not want her son dating Zoila and that is why she is pushing her to be with a different guy. Last episode, Carmen (Roselyn Sanchez) told Zoila she has changed a lot. Zoila told her she was happy with her set-up now. The two friends parted in a huff.

"Devious Maids" season 4 airs Mondays at 9 p.m. EST on Lifetime.