Impossible Invasion is the fifth film in the Lisboa Sociedade Anónima series. Set in the 1960s, it is a touching descent into the emotional misery of the petty bourgeoisie living in rented rooms, suffocating on precarious civil service salaries, with a cultural horizon of soccer and television, and against the backdrop of the colonial war and the glory of the bridge over the Tagus. Noteworthy are the fine performances of the actors (especially Maria do Céu Guerra), the creation of an oppressive and mediocre atmosphere, well underscored by songs from the period, and the concise and rigorous characterization.