Investigation Held by Kolobki. The First Investigation (1983) is a Mystery, Animation, TV Movie film that follows detectives Kolobok and Bulochkin work at an emergency good deeds center and help a grandmother find her grandson. Investigation Held by Kolobki. The First Investigation is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 6.5 out of 10 from 4 votes. Fans of mystery movies may also want to explore similar titles below.