Cuarta entrega de la serie de novela policíaca ambientada en la Barcelona de posguerra, de Jordi Sierra i Fabra. El ex inspector Mascarell descubre casi por azar un plan para asesinar a Franco durante su visita a Barcelona en 1949. 30 y 31 de mayo de 1949. Francisco Franco, Caudillo de España, visita Barcelona en un clima callejero de euforia y rendición a la dictadura. Pero no todos piensan lo mismo y en dos días, silenciado por la prensa, estallará una decena de bombas en la ciudad. Miquel Mascarell, el último policía republicano, con su nueva vida ya asentada al lado de Patro, va a tropezarse de bruces con un complot para asesinar al dictador. Buscando al asesino de un antiguo amigo y compañero en la policía, por petición de su hija, pronto descubrirá que puede cambiar la historia. Si lo encuentra quizá no se produzca un atentado. Si calla, el país puede enfrentarse a una nueva guerra civil o a un giro de 180º grados con la muerte del Generalísimo. La clave: dos días de búsqueda bajo el peso de la responsabilidad, apenas unas horas en las que Mascarell se moverá sobre el filo de una navaja. ¿Será el destino o su propia decisión lo que marcará la resolución de todo? Con la rigurosa precisión histórica y las minuciosas tramas policiales de Cuatro días de enero, Siete días de julio y Cinco días de octubre, Dos días de mayo enfrenta al veterano Miquel Mascarell con todos sus fantasmas, y más sabiendo que está en su mano detener o acelerar el curso de la historia. ENGLISH DESCRIPTION 1949, 10 years and 4 months after the Spanish Civil War. Miguel Mascarell, a former police inspector for the anti-Franco Republic, is alone in Barcelona where he receives news about the death of Mateo Galvany, his former boss, a man who once saved his life. His daughter Maria confesses to Mascarell that she thinks her father was killed. She tells him that a few days prior, the police took them both into custody without explanation. Maria was released the next morning. Her tortured father came back days later stunned and almost speechless. He only managed to tell his daughter that if anything were to happen to him, she should find Mascarell. Despite the veil of silence and repression that weighs on Barcelona and the entire country, Mascarell decides to accept Maria's request for help and find out why her father died. A woman, Esperanza Sistachs, who recently became part of Mateo Galvany's life had restored his will to live. She hands Mascarell a notebook with Mateo's personal notes, which helps him find the identity of the four men that his ex-boss was recently visiting with. Mascarell will follow the trail left by these men that will take him to the barracks of Montjuïc and eventually to the most famous family of criminals in the city.He will soon understand that he is facing an intricate plan to assassinate the dictator.