As it is not possible to recreate the original interrogator’s office, it was decided to install an attractive cell, allowing the visitors to experience the oppressive and frightening environment in which a person would fall when facing repressive structures. Detainees held in this building were taken to the second floor for interrogation. Whatever the reason for the arrest was, all prisoners were treated harshly. If a person was released unconvicted (which was very rare), they had to sign an agreement that they would not tell anyone anything about their experiences in the cell.

The rest of the path of those who were imprisoned here led to the Siberian forced labour camps.

The largest part of the cell is occupied by an ornate table, used for interrogation in this building, which is evidenced by a metal plaque on its side. On the table is the original cover of the KGB case with V. Kumpikevičius case copies. This is a gift to the History Museum of Lithuania Minor by Z. Šličytė from Klaipėda. A mannequin of a security officer greets visitors, wearing a uniform tailored from a model provided by the Vilnius  Museum of Occupations and Freedom Fights.

The original typical table lamp is also eye-catching — at the time it was used by the repressive structures of the USSR throughout the whole Soviet Union. It was also received from the Vilnius Museum of Occupations and Freedom Fights based on deposit rights.