To stave off financial ruin, an inexperienced businessman assumes control of a startup to complete their artificial intelligence project while suffering ever changing investor demands.

Another tweak:

After the founder dies, an inexperienced businessman assumes control of their startup to complete their artificial personality project even as the investor demands grow more chaotic.

Tweaking:

To stave off financial ruin, an inexperienced businessman assumes control of a startup to complete their artificial intelligence project under pressure from ever changing investor demands.