Enclosed feelings

Conservas tells the situation of Paula, a restless girl who wants to propose to have an open relationship with Guille, her boyfriend. But fearing that Guille will not understand it ends up proposing him a party. During the party, Paula talks to her friends and Alan, the guy she would like to open the relationship with. Paula is more and more convinced to tell Guille everything, but he goes ahead and asks her to marry him. Paula after hesitating agrees to marry, leaving her innermost desire behind. Can Paula go on for long hiding her own truth?