On July 29, 1944, Otwock was occupied by the Soviet Army, and shortly thereafter, the NKVD appeared. Some sources suggest that the NKVD consisted of numerous units, located in several separate buildings. One of them was Villa Alba – a former property of Orthodox Metropolitans Bishop Dionizy. It is said that this estate was the former headquarters of the NKVD.

In July 1944, it served as a prison, among others, for Tadeusz Sztumberk – Rychter „Żegota,” the commander of the 27th Wołyń Division of the Home Army (AK). Since 1946, the owner of the villa has been the Association of Benedictine Missionary Sisters. In 1950, the sisters established an embroidery workshop, which has been functioning to this day. The former Villa Alba was demolished in 1986 and replaced by monastery buildings.