In a wooden hut used as a canvassing center, members of a children's puppet-theatre group are rehearsing for a production about a journey to the Moon. The goings-on inside the hut and outside are being closely followed by amateur detective Pepik Barnabás. He, however, is the first to be under suspicion when a trunk containing puppets goes missing. The children follow him but, when they catch up with him, they discover he hasn't got it. Pepík offers to help them in their search.
| Release Date | April 7, 1961 | |
|---|---|---|
| Status | Released | |
| Original Title | Případ Lupínek | |
| Runtime | 1h 20min | |
| Budget | — | |
| Revenue | — | |
| Language | Czech | |
| Original Language | Czech | |
| Production Countries | Czechoslovakia | |
| Production Companies | Filmové studio Barrandov | |