He reached his peak in the end of the 1930s, when he became commander of second department of the Bulgarian Secret Police.

Some sources prove that even the communist leader of Bulgaria Todor Zhivkov was an agent of Geshev.

There are many theories, but the most common of them say that either he was killed near Plovdiv by partisans or he fled to Turkey and then to West Germany.

During the Cold War some of the communist leaders of Bulgaria were afraid that if Geshev became an agent of the KGB he could show his records.

Some Bulgarian writers have written that Geshev lived until 1984 in a ranch near Munich, West Germany.