Im Jin Joo, Lee Eun Jung, and Hwang Han Joo are best friends who are 30-years-old.
Hwang Han Joo is the head of a marketing team for a drama production company. She is a single mother who struggles to balance her work and personal life as she is raising a kid.
Im Jin Joo is a drama writer with a lot of emotional ups and downs. Her personality is unique, talking to a luxurious purse at times. Even though she is a drama writer, she tries to write her scripts in a literary style.
Lee Eun Jung is a documentary director. She runs her own production company, although she's the only employee. One of her documentaries surprisingly becomes popular overnight.
They say love has its own language and these men and women of the Signal House will live together in one house to find someone they like. Problem is, they can't say the words "I like you" nor can they share deciding factors about themselves. Essentially, they're left to send their own indirect signals to the one who catches their eyes, and hope that person will pick up on the hint.
But they aren't the only ones keeping a close eye: celebrity panelists ONE (rapper Jaewon), Soyou (Sistar), Lee Sang Min (Roo’ra), singer Yoon Jong Shin and lyricist Kim Eana are paying close attention. It's their job to decipher the body language from the housemates' exchanges, and judge whether or not a relationship will transpire or not. So while the housemates are in it to find love, it's up to the panelists to guess who will end up with whom.
Episodes: 13